AUDIOropa Audio Transmission Systems Guide 2016 by Madison Technologies

Audio transmission systems for professional use â&#x20AC;&#x201C; mobile and stationary

Induction loop systems, radio-frequency and infrared transmission systems: The technology and service package for the professional use of audio transmission systems: conference and event technology, guided tours and seminars

2016

Induction loop systems Function and use of induction loop systems ....................................4 Portable induction loop systems and components ..........................6 Induction loop amplifiers for small and medium-sized rooms .........7 Induction loop amplifiers for large areas..........................................8 Low-overspill systems (LOS): Function and use ............................10 Loop amplifier systems for LOS installations .................................12 Induction loop receivers and receiver accessories .......................14 General accessories for induction loop systems ...........................15

Infrared transmission systems Function and use of infrared transmission systems .......................18 Infrared transmission systems for medium range ..........................20

Audio transmission systems for professional use â&#x20AC;&#x201C; mobile and stationary

High-performance infrared transmitter with integrated modulator...............................................................22 Infrared receivers ...........................................................................23 Accessories for infrared transmission systems ..............................25

Radio-frequency transmission systems Function and use of radio-frequency transmission systems ..........26 2.4 GHZ transmission systems.......................................................28

Appendix Accessible sound in private and public facilities ...........................32 Technical solutions .........................................................................33 This information brochure illustrates structure and extent of the AUDIOropa program at the time of publication: see back page. HUMANTECHNIK GmbH reserves the right to make technical developments and changes to the structure and scope of its delivery programme in respect of the components described here. This brochure is therefore exclusively for information about available systems, their accessories and application - but is not binding as far as orders are concerned. We will be pleased to advise you on the basis of the current programme status before you place your order.

Comprehensive service offer from AUDIOropa..............................33 Systems based on different physical principles and their main areas of application (table) ....................................33

Keyword list ....................................................................................34

What is an induction loop

amplifier, connected with an audio

Planning induction loop

system?

source (hi-fi system, speaker’s

systems

Using an inductive loop system, hearing-aid wearers can pick up the signals emitted by electric/

alternating current to the loop.

In order to install induction loop systems correctly, it is necessary to take into account many different

The magnetic field inside the loop

factors – with respect to the archi-

phone or hi-fi systems) directly in

allows the listeners to move freely

tecture as well as the area in which

their hearing aids or CI systems.

in the room and pick up the audio

they are used. Some areas of use

As a result, they hear the sound

signals fed directly into their hear-

with special requirements include:

without any annoying background

ing aids.

outstanding advantage of using induction loop systems: no special

gular or square floor plans

legislation

Strong steel reinforcement

The technical requirements for in-

needed is the hearing aid.

duction loop systems are defined in

equipped with adjustable »M« and »T« functions. »M« stands for microphone, i.e. hearing the sound in the room via the integrated microphone, and »T« (telecoil) means that the audio signals are transmitted inductively and directly via a telecoil integrated in the hearing aid. Some hearing aids are also equipped with an »MT« function, which combines both types of reception, microphone and telecoil so that the listeners are able to hear the sound in the room as well as the inductively transmitted signals. How does an induction loop system work? Alternating current creates a magnetic field in a wire/a loop. If a second wire is introduced into this magnetic field (here: the telecoil in a hearing aid), a correspondingly alternating current will also be created in it: the electrical impulses are »induced« into the second wire without any actual electrical connection. An induction loop system consists of a loop and an amplifier. The loop, an insulated wire, runs around the outside of the listening area. The

Rooms without equally rectan-

European standards and

receivers are required. All that’s

Most modern hearing aids are now

acoustic signals converted into

electronic audio sources (micro-

noise, echo or reverberation. An

Function and use of induction loop systems

microphone, etc.), transmits the

the European Standard EN 60118-4 (also known as IEC 118-4). This standard, which HUMANTECHNIK induction loop components meet when installed correctly, regulates the magnetic field strength and the frequency range of the systems. All induction loop systems also comply with the CE standards, which demand the strict control of the equipment with respect to interference, spurious emissions and electrical safety.

or electromagnetic fields from other sources Theatres / cinemas / lecture halls Rooms in which the loop is positioned far away from the listening level Buildings in which several independent loops have to be installed close to one another without interfering with one another.

Installation tips

Planning-Software »Loop Designer« : Developed for you

Loop position: In order to create a

With the purchase of our PROLOOP loop amplifier you receive the

uniform magnetic field, the distance

opportunity to request access our webclient-based induction loop

between the loop level to the normal

design software »Loop Designer«.

listening level should be between approx. 1.2 and 2 metres.

With the help of »Loop Designer« you can include different materials in the room, see how much cable you need, which amount

The position and size of the

of power the amplifier must provide - and you can also create a

loop can also be determined by

simulation of the magnetic field along with its strength. Much easier

the position of the listening area

and faster than you think!

(often much smaller than the size of the room) or the position of the microphones as well as other technical equipment that affects the magnetic field.

Selection of the amplifier: Area used Reception, counter: TV rooms, nursing homes, living rooms: Conference rooms, theatres:

If possible, avoid using dynamic microphones in combination with induction loop systems. If they cannot be avoided, they must be positioned outside the loops. The

Very large induction loop systems: Systems with little overspill: Portable induction loop system:

Amplifier LA-60 / LA-90 / LA-90 Set LA-240 / Cross the Counter LA-240 / PROLOOP C PROLOOP C PROLOOP DCCplus PROLOOP LOSplus PROLOOP DCCplus PROLOOP LOSplus LOS systems LA-90, LA-90 Set loop system kit

Page/s 6/7 7 7/8 8 9 12 9 12 10

distance between the loop and the

This table serves only as general orientation for selecting the amplifier.

dynamic microphone should be at

Please take advantage of our consulting services before you make your

least half the diameter of the loop.

purchase.

Loops are generally laid around the outside perimeter of the room.

Conducting materials, such as

microphone usually produces

reinforced concrete, can increase

better results with respect to

or decrease the area covered

interference or acoustic feedback.

by the loop. The magnetic field

A microphone with a high-quality,

strength is often increased outside

insulated connection cord also gen-

the loop, while it is decreased

erally reduces magnetic feedback.

inside. This fact considerably

The audio signals are then induc-

connection wire to the loop must

tively transmitted to all the »coils«

be firmly twisted or closely parallel.

inside the loop.

Using a condenser or electret

Reduce the area of the loop! The

increases the risk of acoustic feedback. In a new building, you should try to install an LOS system. The LOS system makes it more difficult

Make a test installation. Always

for the current to connect with large

test the loop system to make sure

metal objects.

that it is powerful enough, that the overspill does not cause any problems, etc. Adjust the height of the loop (1.2

Notes on the installation of induction loop systems

Pay particular attention to metal frames. Do not fasten the loop to structural elements made of metal or to similar objects.

to 2.0 m) to provide for the greatest possible range with the smallest amount of overspill.

LA-90 Induction loop kit LA-240 Portable induction loop systems

LA-90 Order No.: A-4209-0

»LA-90« is a compact loop system for transmission over short distances, for example at receptions, counters or in sales areas.

Includes the LA-90, a table microphone, a handset and a special handset holder insert. Ideal for discreet consultations - also suitable for normal-hearing customers.

amplifier for the supply of inductive signals in small

The induction loop system kit contains a complete, portable induction loop system designed for

rooms or coaches Order No.: A-4221-0

The LA-240 can supply rooms up to

Positioned between the dialogue

includes the PROLOOP C induction

approx. 50 m² with inductive audio

partners, »LA-90« receives the spo-

loop amplifier (see p. 8) as well as

signals via the connected loop. The

ken word via a built-in or optionally

two cable reels with 20 metres of

delivery includes a 37 metre long

additionally connected microphone

loop wire each and the PROLOOP

induction loop cable. In addition

(e.g. table microphone page 15 or

FSM measuring instrument incl.

to the setting options for the basic

EH1205, illustration page 7). The

DIR under-the-chin receiver (see p.

volume and sound, the digitally

integrated loop transmits the signals

13). The system is easy to use and

controlled induction loop amplifier

inductively to hearing devices, CI-

ready to go »in a flash« – ideal for

also supports volume stabilisation

systems or other inductive receivers

temporary installations.

with an automatic gain control. The

the option of connecting a headset.

LA-90 Set (Order No.: A-4211-0)

Order No.: A-4271-0

LA-240: Induction loop

rooms up to 140 m² in size. The set

(e.g. LPU-1, page 13). There is also

All what you need for a professional application of the LA-90:

Induction loop system kit

The scope of delivery does not include a microphone; recom-

device has two audio-input sockets, a TOSLINK input and a coaxial connector.

Power is supplied optionally via

mended microphones: e.g. table

the mains power adapter or the

microphone (page 15) or wire-

It is connected to the 220 / 110 V

integrated rechargeable battery.

less microphones UHF101 and/or

supply via an external adapter. All

UHF401 (page 23).

settings can be made via a remote control.

Technical data Dimensions (HxWxD): 200 x 185 x 70 mm Weight: 635 g (incl. rechargeable batteries) Microphone sensitivity: up to 60 dB Prim. power supply: 100-240 V 50-60 Hz Secondary: 16 V DC or via integrated 12 V 1,300 mAH rechargeable battery Output power: max. 10 W

Technical data Power supply: 220 - 240 V Weight: 11 kg Colour: Silver Dimensions (HxWxD): 210 x 610 x 360 mm Power cord: 2 m Features Max. power: 4.8 A RMS Max. voltage: 31 V Frequency range: 100 - 5,000 Hz ( ± 3 dB) Distortion: < 1%

Technical data Dimensions (HxWxD): Weight: Colour: Power supply: Audio-input:

42 x 180 x 140 mm 905 g silver-metallic 12 – 30 V DC via adapter (extern) 2x Micro input / 2x Line In 1x TOSLINK/ S/PDIF

LA-60 LA-240 Induction loop pads Induction loop pad for the LA-60 or the LA-240

LA-60 Order No.: A-4213-0

Order No.: A-4910-0

The LA-60 induction loop amplifier

The »pad« contains a small loop. It is connected directly to the LA-240

is designed for use in small rooms

or LA-60 induction loop amplifier and placed under the seat cushion or

up to 16 m or for partial signal

behind the back of a chair. The connection cord for the pad is 4.50 m long.

coverage, at information counters,

As a result, the signal coverage can be restricted to a very small area.

for example. It is equipped with two line/mic input jacks, which can be selected and activated by flipping a switch. The control switch is used to individually adjust the volume. Control lamps help in the operation of the system by indicating the corresponding status signals. Technical data Power supply:

180 – 265 V AC 50 / 60 Hz 10 VA Dimensions (HxWxD): 65 x 121 x 35 mm Weight: 146 g Induction loop system output power 1.3 A RMS, 1.82 A surge output current 100 - 5 kHz – compliant with the BS6083 pt4 (IECI 18-4) standard for a loop, with 24 / 0.2 cable (0.75 mm²) at 0.03 Ω/m

Small »Cross-the-counter« induction loop

Cross-the-counter Induction loop amplifiers and components for small to mediumsized rooms

Order No.: A-4917-0

The small »Cross-the-counter« induction loop has been designed to supply induction loop signals to small areas, such as individual service points or reception desks. The system is installed – generally underneath the table top – using adhesive clamps with a space requirement of approx. 35 x 35 cm; recommended induction loop amplifier: LA-60 or LA-240. »EH1205« microphone for LA-240 and LA-90 Order No.: EH1205-0

Directly connected to the induction loop amplifier, the microphone, with four meters of cable and a clip, provides a speaker with ample freedom of movement for close dialogue. It can also be ordered separately as a replacement microphone or a secondary microphone to be connected to the second microphone jack. Microphone »EH1205«

PROLOOP C Induction loop amplifier High output current: 4.8 A RMS

PROLOOP C Order No.: A-4246-0

Short-circuit-proof Automatic fuse reset

The PROLOOP amplifier family is

Two symmetrical

designed for professional use in

XLR(F) input jacks

medium-sized rooms (up to 170 m²)

One RCA input jack

in private buildings and public

One line output jack

facilities, in which particularly high

Extra-sturdy jacks Dual action AGC for excellent speech recognition High availability, operating reliability and quality assurance Convenient monitoring of the magnetic field: Can be done using headphones or speakers Treble control to compensate for treble losses due to reinforcement

dependability and extremely reliable operation are required. Thanks to a 100-percent shortcircuit-proof amplifier, switchable, symmetrical XLR(F) input jacks and extremely stable output performance, the PROLOOP C is able to meet these demands. Automatic Gain Control (AGC) guarantees consistent field strength and reproduces stable sound with a special emphasis on clear speech, even under acoustically demanding conditions. Corresponding test equipment can be used to evaluate the sound quality via the integrated monitor out jack.

Technical data for the PROLOOP C Mains connection: 115 / 230 V AC (main transfer switch) 50 / 60 Hz, 7-200 W, 10 A fuse Coverage: 170 m² acc. to IEC 60118-4, single-loop, free field Induction loop output Max. current: 4.8 A RMS, 13.6 A peak, 1-5 ms, 1 kHz, short-circuit-proof Max. voltage: 11 V RMS, 15.5 V peak Output AGC: Sets voltage and power for steady signals like oscillation and sine curves after 0.6-1 seconds to -10 dB. Short pulses and normal program signals are not limited. Frequency response: 100 - 5,000 Hz ( ± 3 dB) Distortion: < 1% Cable connection: Screw connection on rear panel of the amplifier Outputs 1. LINE OUT: 0 dBm-RCA out (with AGC function) Inputs IN 1 und 2: 0.5 mV-100 mV / 10 kΩ (mic.) alt. 25 mV - 4 V/ 10 kΩ (line) AGC, switchable phantom voltage, XLR(F) connections IN 3: 50 mV-10 V / 10 kΩ, RCA connection AGC Dynamics: > 70 dB Rise time: 2 - 500 ms Fall time: 0.5 - 20 dB/s Controls and displays Treble control: 0 - +9 dB, potentiometer Induction loop adjustment: 0 - 170 m², potentiometer Displays: Mains connection: 1 green LED Input level: 1 green LED Induction loop power: 1 green LED Induction loop monitoring 6.3 mm jack for headphone connection Enclosure Dimensions: 64 x 295 x 205 mm (H x W x D) Weight: 3.6 kg Colour: black

PROLOOP DCCplus

PROLOOP DCCplus Technical data Main connection 230 V AC, 45-60 Hz, 150 Watt Passive protection Fuse 1.5 A Surface coverage 1000 m² acc. to IEC 60118-4 Induction loop output Max. current 12 A RMS, 34 A from peak to peak, 1-5 ms, 1 kHz Max. voltage 32 V RMS, 45 V peak Output-AGC Keeps the audio signal level constant within the connected loop. AGC reaction time: Sinus -10 db at 8 msec to 2 sec. Frequency range 100 – 5.000 Hz (±3 dB) Distortion < 1 % at nominal output, 1KHz Cable connection 2 screw terminals on the reverse of the device Outputs Slave LINE OUT 0° / 90° Phase shift adjustable, 6.3 mm jack plug Inputs IN 1 XLR (F) socket, MIC IN (symmetric, sensitivity 1 mV ) IN 2 XLR(F) socket, can be switched as a microphone or line input 100-V priority input for connection to PA systems Slave SLAVE-IN (6,3 mm jack plug) AGC Dynamics > 36 dB Control and display Induction loop setting Rotary knob Input level IN 1 and IN 2 can be adjusted separately Display Main connection: 1 green LED AGC / Compression Input level 6 differently coloured LEDs Current: 6 differently coloured LEDs Induction loop monitoring 1 headphone output Housing Dimensions 90 x 430 x 270 mm (H x W x D), 19-inch rack (2 height units) Attachment 4 attachment points on the front plate for installation in 19-inch rack Colour black Weight 7,8 kg

PROLOOP DCCplus Order No.: A-4264-0

The PROLOOP DCCplus is designed for rooms of up to 1000 m² with loop signals and is the ideal solution for events and meeting venues. We gave the PROLOOP DCCplus a complete overhaul and the revised model for 2015 is better than ever! Each of the two XLR(F) inputs can be configured as LINE (symmetrical) or as microphone input (asymmetrical). The equipment provides an output of up to 12 A RMS and guarantees secure audio transmission. The Automatic Gain Control hereby ensures good sound reproduction at constant field strength and high stability.

Loop amplifier – also for low overspill installations Simple and safe handling High output current: 12 A RMS Main transfer switch 115 / 230 V AC Active protection against short circuits Two XLR(F)-sockets, one configurable as Microphone input (amplifier setting, phantom feed) or LINE-input (amplifier setting) 100-V-priority input for the connection of ELA systems Separate treble/base regulation Display of loop current 3,5-mm-headset socket to monitor audio signals Control to reduce metal losses Suitable for the set-up of low overspill systems 19” rack casing

For standard and low overspill supply Beyond the standard application the PROLOOP DCCplus is also suitable for the realisation of low overspill loop systems. This requires two PROLOOP DCCplus devices.

Standard induction loop systems produce a magnetic field that usually exceeds the »core service area«. This so-called »overspill«, which travels horizontally and vertically, might still be audible three to four loop widths away. This effect often limits the use of this technology. Low-overspill systems expand the options for the application of induction loop systems.

Low-overspill systems (LOS): Induction loop systems with low overspill

Low-overspill systems (LOS)

Reduced danger of feedback

That’s why we strongly recom-

considerably reduce »overspill«.

due to lower power consump-

mend that you take advantage

They use special loop patterns

tion,

of the ser vices offered by

to reduce the signal strength outside the loop.

Extremely low overspill at reduced directional sensitivity.

For these patterns, two loops HUMANTECHNIK service for

equal distribution of the desired

planning low-overspill systems Each individually optimal customisation and configuration

An LOS system consists basically

depends on the conditions pre-

of two induction loop amplifiers

vailing in the area of application,

that are operated out of phase.

in other words, on the room floor

This configuration prevents the overspill and makes it possible to operate several induction loop systems in adjacent rooms with-

plans and the sizes of the coverage areas, the number of internal loops and the demands made on low overspill.

out having their signals interfere

Determining the corresponding

with each other:

values for the »customised« low-

No field strength reduction in the centre of the loop due to reinforced concrete, Greater reproducibility of the results,

ers in planning LOS installations.

with each other to achieve an

desirable signal-free areas.

We provide competent support to architects, technicians and install-

have to be operated out of phase

signal without creating any un-

HUMANTECHNIK.

overspill layout and the optimal level adjustments in each case

Also take advantage of our loop planning software »LOOP DESIGNER « W i t h t h e h e l p o f »Loop Designer«, various materials within the room can be considered, you can see how much conducting material you need, which perfomance the amplifier has to deliver - and you can also simulate the magnetic field with its strength. Much easier and faster than you think!

is based on a complex method of

More information about

calculation and installation.

»LOOP DESIGNER« can be found on page 5.

The overspill of : Standard induction loop systems works in a horizontal and vertical direction. The resulting Âťeavesdropping effectÂŤ is often still measurable over distances of up to three induction loop widths. Low-overspill systems (LOS) that are competently customized and configured reduce overspill considerably to allow the operation of induction loop systems in directly adjacent rooms.

PROLOOP LOS Induction loop amplifier system for low-overspill installations Uniform coverage throughout the room (no dead spots in the middle of the room) No signal fluctuations when hearing-aid user moves his/her head Reduced sensitivity in respect to architecture-related steel reinforcements High efficiency, low power consumption 19“ design Well suited for retrofitted installation in theatres, cinemas, concert halls, schools, conference rooms, housing, etc. (Possible for floor reconstructions only)

Technical data Mains connection: Coverage: Induction loop output Max. power: Max. voltage: Output AGC:

Frequency range: Distortion: Cable connection: Outputs Master OUT: Slave OUT: Inputs IN 1:

IN 2: IN 3: AGC Dynamics: Rise time: Fall time: Controls and displays Loop setting:

PROLOOP LOS 230 – 240 V AC, 50 Hz, 25 – 700 W 300 m² acc. to IEC 60118-4 2x 5 A RMS, 2x 14 A from peak to peak, 1-5 ms, 1 kHz, continuous 1 kHz, short-circuit-proof 2x 17 V RMS, 2x 24 V peak Sets voltage and power for steady signals like oscillation and sine curves after 0.6-1 seconds to -10 dB. Short pulses and normal program signals are not limited. 100 – 5,000 Hz (±3 dB) <1% 2 screw connections on rear panel of the amplifier 0 dBm, RCA (with AGC function) 0 dBm, RCA (with AGC function)

PROLOOP LOS is a complete system for the operation of lowoverspill systems. It includes the full range of electronics required in a single enclosure. Thus, there is a flexibly sized, reliable lowoverspill solution available to serve neighbouring event rooms and assembly halls up to 300 square metres in size.

Combined XLR(F) / 6.3 mm jack MIC sensitivity 2.5 mV – 10 V RMS / 10 kΩ, LINE sensitivity 37 mV – 10 V RMS / 10 kΩ or phantom voltage 9 – 20 V Dual RCA connections, 45 mV – 10 V RMS / 10 kΩ Dual RCA connections, 45 mV – 10 V RMS / 10 kΩ

The system is equipped with Auto-

> 70 dB 2 – 500 ms 0.5 – 20 dB/s Rise and fall times depend on the currently active channel

integrated monitor output for the

0 – 300 m² (with one potentiometer each for master and slave outputs) Input level: IN 1 and IN 2 can be adjusted separately Displays: Mains connection: 1 green LED Input level: 1 green LED Induction loop power: 2 green LED Induction loop monitoring Two 6.3 mm jacks for headphone connection Dimensions Size: 88 x 438 x 280 mm (H x W x D) Colour: Black Weight: 9.3 kg

Order No.: A-4252-0

matic Gain Control (AGC) to produce stable sound with outstanding speech reproduction, even under difficult acoustic conditions. The corresponding measurement technology makes it possible to easily and conveniently test the sound quality of the induction loop system.

PROLOOP LOSplus

PROLOOP LOSplus Order No.: A-4254-0

As a ready-for use system for operating low-overspill systems in large rooms of up to 1,000 m², the induction loop amplifier PROLOOP LOSplus has all the required electronic configurations in one single casing. The high-performance amplifier has an Automatic Gain Control (AGC) that also guarantees stable sound with excellent speech reproduction even in difficult acoustic conditions. For acoustic quality controls on the induction loop outputs A and B, the PROLOOP LOSplus has a monitor output for connection of headphones.

Technical data Main connection 115 / 230 V AC, 50-60 Hz, 300 Watt Passive protection Fuse 2.5 A Surface coverage 1,000 m² acc. to IEC 60118-4 Induction loops output Max. current 2x 12 A RMS, 2x 34 A from peak to peak, 1-5 ms, 1 kHz Max. voltage 2x 32 V RMS, 2 x 45 V peak Output AGC Keeps the audio signal level constant within the connected loop. AGC reaction time: Sinus -10 db at 8 msec to 2 sec. Frequency range 100 – 5,000 Hz (±3 dB) Distortion < 1 % at nominal output, 1KHz Cable connection 2 screw terminals on the reverse of the device Outputs Slave LINE OUT 6.3 mm jack plug Inputs IN 1 XLR(F) socket, Microphone input MIC sensitivity 2.5 mV – 10 V RMS IN 2 XLR(F) socket, can be switched as a microphone or line input 100-V priority input for connection to PA systems Slave SLAVE IN (6,3 mm jack plug) AGC Dynamics > 36 dB Control and display Loop setting Rotary knob for channel A and B Input level IN 1 and IN 2 can be adjusted separately Display Main connection: 1 green LED Input level 6 differently coloured LEDs Current 6 differently coloured LEDs per loop channel Induction loop monitoring 1 headphone output (left audio channel for induction loop output A and right audio channel for induction loop output B) Dimensions Size (H x W x D) 90 x 430 x 270 mm 19-inch rack (2 height units) Attachment 4 attachment points on the front plate for installation in 19-inch rack Colour black Weight 9.3 kg

Induction loop amplifier system for low-overspill installations in large rooms Homogeneous signal supply to rooms up 1,000 m² No signal fluctuation when hearing aid wearer moves head Reduced sensitivity in respect to architecture-related steel reinforcements High efficiency, low power consumption 19” model

PROLOOP LOS-W Low-Overspillinduction loop amplifier for mounting on walls For installations without rack For public rooms without neighboring tech rooms

PROLOOP LOS-W Order No.: A-4256-0

The PROLOOP LOS-W is specially designed for rooms without a neighboring audio system infrastructure.

Ideal accessibility of the audio inputs

The device has been conceived

Main connectors protected against manipulation

makes it possible to be applied

Well suited for the subsequent installation in schools, universities, public meeting rooms etc. (Possible for floor reconstructions only)

Technical data Mains connection: Coverage: Induction loop output Max. power: Max. voltage: Output AGC:

to be mounted on a wall and thus without the necessity for the usual mounting appliances for audio systems (racks). It is a complete unit of equipment for the setup of a low-overspill-

Frequency range: Distortion: Cable connection: Outputs Master OUT: Slave OUT: Inputs on front side Line::

system and contains all the necessary electronics in a well accessible

MIC:

casing.

MIC/Line:

The connectors on the front of the

Inputs inside MIC:

apparatus allow a variable and easy use with typical every-day audio devices. The audio of stereo sets, MP3- and video players can be transformed into inductive signals without trouble - ideal for the upgrading of class rooms and other public meeting rooms. The connectors for the mains electricity and the loop are under a protective cover, which protects them from manipulation and accidental damage.

230 – 240 V AC, 50 Hz, 25 – 700 W 300 m² acc. to IEC 60118-4 2x 5 A RMS, 2x 14 A from peak to peak, 1-5 ms, 1 kHz, continuous 1 kHz, short-circuit-proof 2x 32 V RMS, 2 x 45 V peak Sets voltage and power for steady signals like oscillation and sine curves after 0.6-1 seconds to -10 dB. Short pulses and normal program signals are not limited. 100 – 5,000 Hz (±3 dB) <1% 2 screw connections inside the amplifier casing 0 dBm, RCA (with AGC function) 0 dBm, RCA (with AGC function) 3,5 mm jack LINE sensitivity 37 mV – 10 V RMS / 10 kΩ 3,5 mm jack, balanced, with 3 V DC supply MIC sensitivity 2.5 mV – 10 V RMS / 10 kΩ 6.3 mm jack, line or MIC input selector, 48 V phantom voltage switchable

Overrides MIC connector on front MIC sensitivity 2.5 mV – 10 V RMS / 10 kΩ 100-V priority input for connection to PA systems AGC Dynamics: > 70 dB Rise time: 2 – 500 ms Rise and fall times depend Fall time: 0.5 – 20 dB/s on the currently active channel Controls and displays Loop setting: 0 – 300 m² (with one potentiometer each in the casing for master and slave outputs) Input level: IN 1 and IN 2 can be adjusted separately Input level display: 6 LEDs Induction loop power: 6 LEDs per loop channel Warning LEDs: One each of overload, overheat and loop error Induction loop monitoring 3,5 mm jack for headphone connection on front side Dimensions Size: 290 x 335 x 68 mm (H x W x D) Colour: white Weight: 9.3 kg

»Induction loop receiver« and accessories LPU-1: Induction loop receiver / Under-the-chin receiver Order No.: A-4276-0

CRESCENDO 50 Order No.: A-4202-0

The universal CRESCENDO 50

The LPU-1 takes the signals trans-

audio amplifier, which was specially

mitted by the induction loop system

designed for dialogue situations,

directly to the ears of people who

can also be used as a pocket re-

do not wear hearing aids.

ceiver for induction loop systems.

The ear buds of the featherweight, ergonomically designed under-

An under-the-chin receiver serves

Order No.: A-4963-0

The S/PDIF converter (operation with power supply unit) converts digital signals of respective audio sources into analogue signals, allowing their further processing by systems with analogue input.

as the listening device.

the-chin receiver can swivel to stay

Single-bay recharger for the

firmly fixed in the user’s ears even

LPU-1

when he/she moves his or her head.

S/PDIF Audio converter

Order No.: A-4977-0

The flexible material used to make

Silicone earpieces for LPU-1 under-the-chin receivers (also for RCI-102) Standard

the ear buds also nestles gently

When the LPU-1 is not in use, it

Order No.: A-4985-0 (2 sets)

into the auditory canal to effectively

can be placed into the recharger

Order No.: A-4987-0 (24 sets)

subdue any ambient noise.

to recharge.

LPU-1: Technical data Sound frequency transmission range: 70 - 5,400 Hz Distortion factor: <1% Signal-to-noise ratio: Typ. 60 dB Battery charging time: Approx. 6 h Operating time: Approx. 6 h Maximum volume: Approx. 120 dBA Weight: 47 g

Tapered shape Order No.: A-4988-0 (2 sets) Order No.: A-4989-0 (24 sets)

Perforated Order No.: A-4993-0 (2 sets) Order No.: A-4992-0 (24 sets)

Multiple charge stations, storage and transport components for loop receivers

A100: Additional battery for

XLR(M) adapter cord -->

the LPU-1

3.5 mm cinch

Order No.: A-4970-0

Order No.: A-4933-0

e.g. to connect to CD players or 12-battery recharger for the

stereo systems

A100 battery Order No.: A-4974-0

Table microphone with

Induction loop pad (description, see p. 7) Order No.: A-4910-0

XLR(M) plug connection Order No.: A-4495-0

2 AA batteries included

Cinch connection cord Order No.: A-4906-0 (length: 3 m) Order No.: A-4907-0 (length: 6 m)

5-bay recharger for the LPU-1 under-the-chin receiver Order No.: A-4976-0

Aluminium case with charging stations and accomodation for 10 underchin receivers Order-No. A-4183-0

This case contains two charging stations of type A-4976-0. 10 receivers LPU-1 or RCI-102 can be charged as well as safely stored and transported. The power connector is on the outside, the power supply unit is included.

»General accessories for induction loop systems« XLR(M) --> 6.3 mm plug Order No.: A-4939-0

Loop cable Order No.: A-4296-0

For use with UHF101 or UHF401

Section 1,5 mm², insulated.

microphone systems.

Available in 10 m units

PROLOOP FSMplus: Measuring device for induction loop systems Order No.: A-4291-0

The PROLOOP FSMplus is a meaXLR(F) --> 3.5 mm plug Order No.: A-4934-0

For the connection of the table

Order No.: A-4297-0

Section 2,5 mm², insulated. Available in 10 m units

microphone to the LA-90 or LA-240.

suring device that measures the magnetic field strength of induction loop systems according to IEC 60118-4:2006 and BS 6083, Para. 4. The device delivers reliable RMS

Order No.: A-4298-0

values on the output level, response

XLR connection cord

Section 4 mm², insulated.

frequency, AGC function (Auto-

XLR(F) --> XLR(M)

Available in 10 m units

matic Gain Control), distortion and

Order No.: A-4935-0 (length: 2 m) Order No.: A-4936-0 (length: 6 m)

background noise in the induction looped tested. In addition, it enables the user to make an acoustic evaluation of the sound using signal

Copper ribbon cable For loop installations underneath flooring. Order No.: A-4937-0 (50 m)

21 x 0,4 mm (section 5,4 mm²) insulated

Order No.: A-4948-0 (100 m)

21 x 0,4 mm (section 5,4 mm²) insulated

Order No.: A-4949-0 (100 m)

21 x 0,4 mm (Querschnitt 1,8 mm²) insulated

reproduction via earphones. Features Compliant with IEC 60118-4:006 and BS for testing equipment used to evaluate induction loop systems. True RMS: 125 ms average time Crest factor: 3 A filter Measuring range: +6 dB ...-40 dB (0 dB = 400 mA/m) Power supply: 2x 1.5 V AA batteries, long battery life Display: Battery status control via LED / field strength: via LED-scale (approx. 1 dB resolution) Headphone jack with volume control Dimensions (W x H x D): 83 x 126 x 35 mm Weight: approx. 170 g (incl. batteries)

Wireless PLL microphones, 1- or 4-microphone systems – also recommended as an audio source for infrared transmission systems (see p. 18 ff). (Description, p. 24)

How does an infrared audio

for certain large professional

Advantages of infrared

transmission system work?

applications.

transmission technology

An IR audio transmission system

This applies in particular to venues

Infrared light signals cannot

consists of at least one transmitter

and facilities, ...

pass through walls, which

and one receiver. The transmitter is connected to an audio source – to a microphone system, for example – and transmits the signals received in the form of infrared light impulses wirelessly to the receiver, which converts the light impulse received

»Function and use of infrared transmission systems«

into electrical audio signals and feeds them into the reproduction device connected – into headphones, for example, or a teleloop for the inductive direct transmission to hearing aids. Areas of application

to the receivers of the transmission system. The transmitter’s large signal emission angle or the wide signal dispersion and the reflection from walls, ceilings and floors guarantee reliable reception – for the most part, even when smaller obstacles (furniture or pillars) block the direct »line of sight« between the transmitter and the receiver.

there plays a decisive role,

in which the transmitter is installed.

for example in courtrooms or

Transmission is reliable and

conference rooms,

absolutely free of the inter-

and areas, ... ... in which several transmission

ference caused by electromagnetic fields or structural elements in the building, such

systems are operated parallel

as metal reinforcements. In

to one another in neighbouring

addition, these systems do not

rooms, such as in multiplex

produce any electromagnetic

cinemas or in living quarters

emissions themselves.

in social facilities.

Infrared transmission systems can be used easily in many dif-

Apart from the home environment,

sion systems have proven valu-

ferent countries; an »obligation

in which the wireless reception of

able in schools and universities,

to register« them, similar to the

audio signals via infrared light has

in large auditoriums with partial

allocation of radio licenses, is

long since become a popular alter-

signal coverage or in city centres,

not required.

native to the corresponding radio-

in which there is a very high rate of

frequency transmission systems,

radio-frequency emissions.

to all other transmission principles

»infrared signal route«

the information exchanged

reduces reception to the room

In addition, infrared audio transmis-

this technology proves superior

The transmitter sets up an

... in which the confidentiality of

Coverage While the range of systems de-

Other factors affecting infrared

Light-coloured floor, wall and

transmission technology:

ceiling areas reflect infrared energy more strongly. This can

signed for private use is limited

The transmitter does not focus

to about 10 or 20 metres, high-

the emission of the infrared

powered infrared transmitters are

light impulses, i.e. it uses a

Dark, low-reflection floors,

able to provide coverage for much

very large transmission angle.

ceilings and walls absorb the

larger rooms. The transmitters

As a result, there is generally

energy and can limit reception

described in this product overview,

no need for a specific »line of

ranges as a result.

for example, are able to provide

sight« between the transmitter

coverage for up to 900 m².

and the receiver.

Other characteristics of infrared

The signals do not only travel

mize the probability of interfer-

audio transmission systems:

directly between the transmit-

ence resulting from powerful

ter and the receiver, but are

lighting. However, functional

also reflected from the walls,

problems due to direct sunlight

ceilings and floors. Neverthe-

cannot be ruled out altogether.

Portable/mobile systems are available.

increase the reception range.

The carrier frequencies of 2.3 to 3.8 MHz (basic band) mini-

Multi-channel operation pro-

less, pillars and furniture –

vides for flexible use, making

depending on their size and

it possible to simultaneously

position – can interfere with or

transmit several different lan-

even block reception under

guages, for example.

certain conditions.

Receivers are compatible

In any case, a technically

different locations and connect

with TV listening systems for

correct, precise positioning

them in parallel.*

at-home use.

of the transmitters is

In order to provide coverage

Reliable, inconspicuous audio transmission for rooms up to 900 m² in size

for areas that exceed the maximum range of the individual transmitters, it is necessary to install several transmitters at

required for optimal signal coverage.

The signals are transmitted to the hearing aid via a special infrared receiver with audio amplification equipped with a teleloop (induction). If the receiver is equipped with an audio output jack, it is also possible to use headphones or earphones. Amplifying infrared audio receivers are available as pocket devices, underthe-chin receivers, headphones with reception diodes or in the LR version with a teleloop and audio output.

* If the reception range is the main criterion for the application in this context, it is advisable to consider the use of a radio-frequency system as an alternative – also taking into consideration the cost factor (p. 30 ff.).

PRO IR-202 Infrared transmission system for medium range, combined configuration possible

PRO IR-202 Transmitter Order-No.: A-4082-0

The transmission energy of PRO IR-202 Transmission/Modulator unit spreads club-shaped in the room in a broad aperture angle (see illustration bottom right). The audio transmission is trouble-free due to the infrared signal modulation on 2.3 and/or 2.8 MHz. The PRO IR202 can be combined with a further PRO-IR-202 in order of increasing the range and the dispersion angle of the infrared signals up to 240Â°.

A set for ceiling and wall mounting

Power supply of secondary

is included in the delivery. A tripod

unit by interconnecting cable

(Item-No: A-4986-0) is available as

Operation of combined

an accessory (page 25).

configuration with a single

PRO IR-202 at a glance

power supply unit Usable as fixed (wall or ceiling

Broad exit angle of infrared

mount) or mobile installation

signals

(e.g. tripod, see page 25).

Configuration with 1 and 2 channel transmission Combinable: Two PRO IR-202 transmitters can be linked

Specifications Power supply:

Connection cable: Carrier frequency: Infrared transmission power: Ranges/ Supply areas: Input

Combined mode Power supply unit input: 100-240 V AC, 50-60 Hz, Exit: 24V DC, 0.5 A (2.5 mm barrel plug, centre contact »positive« 2 x barrel plug 2,5 mm 2,3 MHz (channel 1) and 2.8 MHz (channel 2)

each other occurs via the supplied installation kit. All necessary cables are included.

0.7 W Single transmitter: 1-channel operation 180 m² Combined mode (2 transmitters): 370 m²

Line-input: Cinch channel 1 and channel 2 Microphone input: 3.5 mm jack plug, sensitivity adjustable via control dial In- / Outputs for combined mode Primary transmitter: Power-out 24 V, audio-out “sync out” Secondary transmitter: Power-in 24 V, audio-in “sync-in” Display LED: Input-level indicator LEDs, 1 per channel. Mechanical data Ambient conditions: 0 – +50 °C ambient temperature (non-condensing, non-corrosive environment) Mounting types: Wall or ceiling mount: installation kit included tripod (optional) Dimensions: 254 x 79 x 64 mm (W x D x H) incl. front panel Colour: black with white lettering, red acrylic strip Weight: 300 g Certification:

Combining two PRO IR-202 with

The units mounted on top of each other can be freely turned to the required angles to achieve optimal signal supply in the room. The range of the combined units is up to 370 m² at one-channel transmission - ideal for large rooms. With the selection of the suitable receiver type (RCI-102, PR-22+ or IP-112) the range can be further influenced, depending on the sensitivity of the receiver diodes.

CE, WEEE, RoHS

PRO IR-202: Greater range through combining two transmitters

Range example Single transmitter PRO IR-202 PRO IR-202 + one further transmitter PRO IR-202 in identical orientation

PRO IR-400 High-performance infrared transmitter Possible application areas: Cinemas Parallel transfer of different languages (channel selection) Conference and meeting rooms, multimedia rooms Courts and lecture halls Schools, universities Churches

Infrared transmitter PRO IR-400 Order No.: A-4026-0

The two-channel infrared transmitter PRO IR-400 combines the modulator and transmitter in one unit in a single Housing. This design saves costs and can be mounted in a spacesaving manner. The system generates a wide exit angle for the infrared signal, which is spread efficiently throughout the supplied areas in the club shape typical for this transmission technique. The transmission of the PRO IR-400 is realised securely at a working bandwidth of 2.3 and 2.8 MHz and without any interfering ambient light.

Technical data Dimensions (WxHxD) Weight Colour Housing Power supply adapter DC-input Power consumption Carrier frequencies Input impedance Trigger voltage of the Input level display Total range at +/- 3 dB Audio-Inputs Sync-in / Sync-Out Microphone input Audio display Sender range Temperature range Attachment Conformities Compatible receiver

41.2 x 32.7 x 7.5 cm 1,100 g Anthracite / front panel: dark red transparent Primary 230 V~ 50-60 Hz, secondary 28 V DC Low-voltage connector, 28 V DC, middle is »+«-Pol 700 mA 2.3 MHz (left or A-channel) and 2.8 MHz (right or B-channel) Audio-In: 18 kΩ Mic-In: 1.3 kΩ Audio-In: 110 mV Mic-In: 1.5 mV Lower limit: 400 mV Upper limit: 6 V Cinch (RCA) for left and right and/or A and B-channel Cinch (RCA) for left and right and/or A and B-channel 6.4 mm Stereo-jack plug Input level-LEDs, one per channel. 30 metre, closed room 0-40°C Wall attachment with conventional hooks, Tripod attachment via standard screw attachments CE, WEEE, RoHS RCI-102, IP112

In 1-channel mode, the transmitter supplies areas of up to 900 m². Adding additional transmitters of the type PRO IR-400 allows the receiving

Main PRO IR-400 system

PRO IR-400

range to be expanded easily. The delivery includes an attachment set for wall and ceiling mounting. There are also tripods available for freestanding installations.

The reception area can be multiplied by connecting several transmitters.

Infrared receivers compatible with all infrared transmitters with the operating frequencies

Headphones with 2-channel IR-receiver »IP112« Order No.: A-4039-0

The wireless headset with 2-channel IR-receiver is suitable for the operation with transmitters operating on 2.3 or 2.8 MHz. It reproduces au-

Technical data RCI-102 Weight: Rechargeable battery, battery life: Modulation processes: Sound frequency transmission range: Operating frequencies: Harmonic distortion: Signal-to-noise ratio: Maximum volume: Main switch:

of 2.3 MHz and 2.8 MHz 52 g with battery A100 NiMH battery, approx. 5 h FM, mono or stereo 15 - 20,000 Hz 2.3 MHz and 2.8 MHz <1% Typ. 60 dB Approx. 120 dB Integrated in the »receiver«

dio signals in excellent sound quality. The easy to operate headset is equipped with a number of comfort functions including the adaptation of the sound pattern to individual listening preferences. The volume can be individually regulated on each side of the headset.

Technical features IP-112 / PR-22+ Receiver frequency 2.3 MHz & 2.8 MHz (can be switched) Modulation FM broadband Frequency response 60 Hz to 12 kHz ± 3 dB Signal-to-noise ratio 54 dB not weighted Power supply 2 AAA alkaline batteries Usage period, normal 20 hours Maximum output 6 mW Weight 200 g

IR-receiver »PR-22+« Two-channel infrared under-the-chin receiver RCI-102 Order No.: A-4043-0

Order No.: A-4037-0

The »PR-22+« (with AGC, Autoforming 2-channel receiver for infrared signals. It allows using the range of the respective transmitters

designed under-the-chin receiver

to its fullest. It can optionally be

that is equipped with swivelling

used with rechargeable batteries

earpieces, which means that the

(2 x A-4966-0 per device needed).

the ear even when the user turns his/her head. The soft ear buds also nestles gently in the auditory

PR-22+ infrared receiver Order No.: A-4972-0

matic Gain Control) is a high per-

The RCI-102 is an ergonomically

earpieces retain their position in

5-bay recharger for the

Single recharger for the PR-22+ infrared receiver

Silicone earpieces for RCI-102 and LPU-1 Standard Order No.: A-4985-0 (2 sets) Order No.: A-4987-0 (24 sets)

Tapered shape Order No.: A-4988-0 (2 sets)

Order No.: A-4971-0

canal to effectively subdue any

Single recharger for

ambient noise.

the RCI-102 Order No.: A-4977-0

Order No.: A-4989-0 (24 sets)

Perforated Order No.: A-4993-0 (2 sets) Order No.: A-4992-0 (24 sets)

Infrared receivers Wireless UHF101 microphone Order No.: A-4450-0

The wireless UHF101 microphone set (PLL) can be used in combination with any of the transmission systems described in this brochure. The set consists of a handheld transmitting microphone and the receiver that transmits the signals via cable to the corresponding audio output device. Wireless UHF401 microphone

Technical data for the UHF101 / UHF401 RF transmitting frequency: 16 frequencies in the range from 863-864 MHz / 823-832 MHz Frequency stability: Âą0.005 %, PLL synthesized circuit Modulation: FM Range: Up to 100 m Distortion factor: 0.4% Audio frequency response: 60 to 21,000 Hz, -3 dB Receiver Reception type: Dual antenna, PLL Noise suppression: > 90 dB Audio output: XLR(M) or 6.3 mm jack / Composite signal: 6.3 mm jack Power supply: DC 22 V / 1.2 A (AC/DC adapter included) Transmitter Transmitting power: 10 mW Power supply: Alkaline / NiMH batteries 2x AA Operating time: 6 - 8 h

Order No.: A-4455-0

up to 4/8 channels This system allows the connection of up to 4 microphone transmitters to one receiver. Each microphone transmitter has 2 separate microphone ports, therefore it is possible to transmit up to 8 separate microphone signals to the receiver. And this in crystal-clear 2.4 GHz quality. 2.4 GHz microphone transmitter for up to 4/8 channels Order No.: A-4470-0

The 4-channel UHF401 micro-

Portable pocket transmitter

phone system is designed for use

with PLL microphone...

anywhere where up to four different

The small lightweight transmitter has two separate microphone-in

speakers talk from different loca-

... to be used with the

ports. Included are: 1 transmitter,

tions, in churches, for example.

UHF101 set

rechargeable battery, charger cable,

Four independent handheld microphones transmit the voices

Order No.: A-4460-0

wirelessly to the stationary receiver,

... to be used with the

which in turn feeds the signals via

UHF401 set

cable into an audio output device, such as an induction loop amplifier

Order No.: A-4460-0

or an infrared or a radio-frequency

The handy transmitters can be worn

transmitter.

directly on the body. The speaker then simply clips the microphone to his/her collar to have both hands free.

2.4 GHz microphone system for

plug.in microphone and belt clip. Signal range: Up to 100 m. 2.4 GHz microphone receiver for up to 4/8 channels Order No.: A-4471-0

The very small receiver has a 3,5 mm audio jack plug as an audio-out port. Therefore the receiver can be connected directly to a multitude of devices - even smartphones.

Under-the-chin receiver Order No.: A-4903-0

S/PDIF Audio converter Order No.: A-4963-0

charged, safely stored and transported. The power connector is on the outside, the power supply unit

Under-the-chin receiver weighing

The S/PDIF converter (operation

less than 30 g, which can be con-

with power supply unit) converts

nected to the PR-22+ receiver. The

digital signals of respective audio

ergonomically shaped earpieces

sources into analogue signals, al-

Tripod for infrared transmit-

fit snugly into the auditory canal.

lowing their further processing by

ters PRO IR-202 and

Due to the 3,5 mm jack plug, this

systems with analogue input.

PRO IR-400

Aluminium case with charging stations and accomodation

5-bay recharger for RCI-102 receivers Order No.: A-4976-0

is included.

Order No.: A-4986-0

receiver can be used with a wide range of different audio devices.

Accessories for Infrared Transmission Systems

for 10 underchin receivers Order-No.: A-4183-0

This case contains two charging

Recharger with 5 independent

stations of type A-4976-0. 10 re-

recharging bays for the receivers.

ceivers LPU-1 or RCI-102 can be

This height adjustable tripod is equipped with mounting components matching the respective receivers. Pulls out to a maximum of 3 m Maximum load 20 kg

charged as well as safely stored 12-battery recharger for

and transported. The power con-

A100 batteries

nector is on the outside, a power

Order No.: A-4974-0

supply unit is included.

Time-saving recharger for users

Aluminium case with charging

who operate a larger number of the

stations and accomodation

receivers (RCI-102).

for IR-receivers PR-22+

Replacement A100 battery for RCI-102 Order No.: A-4970-0

Order-No.: A-4189-0

This case also contains two charging stations, but of type A-4972-0 for infrared receiver PR-22+. (Also useable for previous model PR20+). 10 receivers PR-22+ can be

RF transmission systems Of all the wireless transmission technologies, radio-frequency transmission has been around for the longest time. Not surprisingly, then, it is also the most common, and with respect to audio transmission systems for accessible sound, it proves to be the most powerful system with the largest ranges of coverage.

Function and use of radio-frequency transmission systems

The basic configuration of a radiotransmission system consists of a transmitter and at least one receiver. The transmitter, which is connected to an audio source â&#x20AC;&#x201C; to a microphone system or any other

signals to the hearing aid.

tural structures, radiofrequency transmission systems are also ideally suited to open-air applications. Radio-frequency signals are able to easily pass through walls. The listeners can leave the room in which the transmitter is installed at any time without any problem and their RF receivers will continue to provide them with the information they need.

alternative to radio-frequency

headphones.

transmission.

Areas of application Radio-frequency audio transmission systems have already become well established as wireless headphones or TV listening systems in

In addition to these stationary applications, portable, so-called tourguide systems have also proven useful in many areas. Some of the areas they can be used in include

the home environment.

museums, art galleries,

The systems described in this

tourist attractions and

brochure, however, go above and

special events

beyond this, most importantly because they have been designed

or transportation.

for professional applications â&#x20AC;&#x201C; for

The availability and use of several

example:

channels makes it possible to

spacious event venues,

the inductive transmission of the

and independence from

can be connect to the earphones or

up the audio signals to transmit

with teleloops, which provide for

floor plans and architec-

in particular, there is hardly an

in sport arenas or at other

The receivers can be equipped

Due to their ability to

and for open-air applications

output jacks are also available and

audio system, for example â&#x20AC;&#x201C; picks them wirelessly to the receivers.

provide large coverage

Amplifying receivers with audio

pro vide different information at the same time, for simultaneous interpreting into different languages,

in churches and other

for example, or for the treatment

assembly halls,

of different topics for several liste-

in lecture or seminar rooms, as in schools and universities,

ning groups located close to one another.

Outstanding features of

Sunlight, artificial light and

Some countries charge radio-

radio-frequency transmission

the reflection conditions inside

licensing fees for the use of

technology

rooms do not affect transmission.

these systems. In this context,

Transmitter and receiver do not

RF transmission systems are

require a direct »line of sight«.

easy and convenient to use,

Radio waves can pass easily

they are very portable and,

through normal house and

with multi-channel functionality,

building walls. Listeners take

they are very flexible in their

the sound along, even when

uses and applications.

they leave the room in which the transmitter is installed. This means that even very large areas can be easily supplied with audio signals. It is relatively easy to install RF transmitters, which also makes it inexpensive. The costs for installation and hardware do not increase in proportion to the size of the area that requires coverage.

Coverage With respect to coverage, RF transmission systems are far superior to the two other transmission technologies described in this brochure.

frequency ranges for these systems (different from the standard). More useful information on the use of radio-frequency transmission systems Users of audio radio-frequency transmission systems should be aware of the fact that the coverage ranges or the signal scattering go beyond the

easily supply even large arenas

intended coverage areas. As

with audio signals. The trans-

a result, there is no guarantee

mission distances of tour-guide

that the information transmitted

systems with approximately 30

will remain confidential.

metres makes it possible to supply

installed inconspicuously

groups in different locations.

overall architectural picture.

countries only release certain

than 300 metres, it is possible to

information even in large groups or

and do not mar or spoil the

national regulations in some

With coverage ranges of up to more

The transmitters can be (except in metal enclosures)

it cannot be ruled out that the

When planning the parallel use of this type of system – in neighbouring rooms, for ex-

Factors influencing the

ample – the transmission must

operation of radio-frequency

be made on different channels

transmission technology

(compare the number of chan-

Other RF systems or electromagnetic emissions

An attractively priced, functional solution designed to provide large areas with audio signals

nels available with the number of channels required).

could have a negative effect on transmission and signal quality. Users must make sure that their transmission channels are set correctly.

NEW! xepton Portable 2.4 GHzsystem with large range

With a range of up to 300 metres, xepton provides a wide choice of applications, for example as: Interpreter-system System for guided tours or as

Ideal for guided tours simultaneous transmission of different languages Conferences clear understanding, even in noisy and acoustically challenging surroundings Over 10 hours of battery life per charge Useable worldwide

Team-teaching-system (tutoring and conference system) The state-of-the-art 2.4 GHztechnology guarantees a high security against interferences and crystal-clear sound. As there are no country-specific limitations for

Technical data: Dimensions (H x W x T): Weight: Colour: Casing material: Battery type: Battery life: Transmission frequency: Modulation: Transmission range: Channels: Frequency response: Sensitivity: Data rate: Connectors: Indicators: Conformities:

Transceiver Xepton TRX-1 98 x 49 x 17 mm 88 g black resitant plastic Lithium-Ion rechargeable battery 3,7 V / 1100 mAh Over 10 hours per charge 2,4 GHz (ISM band) FSK, with hopping Up to 300 m in open air / 100 m in buildings Up to 40 simultaneous groups 50 Hz – 7 kHz - 95 dBm 2 Mbps 2 x 3,5 mm 4 contact-jack and micro-USB chargeport LC display (group, channel, volume, battery status, mode, signal strength), LEDs (charging status, talk) FCC, CE, RoHS, WEEE

2.4 GHz devices, it can be used all over the world.

be used in a group, with one being

The convenient, lightweight and

defined as master transmitter and

sturdy devices or portable use are

2 further ones of free choice being

available in the following models:

able to speak at the same time.

Portable transceiver xepton TRX-1 Order No.: A-5200-0

The two-way transmitter TRX-1 can be worn on the belt by means of

xepton TRX-1: The two-directional transceiver is a transmitter and receiver in one and permits talking and listening.

All portable xepton-devices have a

the carry case CC-01 (available as

micro-USB charging socket, which

accessory). A sturdy and resistant

makes it possible to charge these

plastic body protects the inner

with any computer or the most com-

electronic components.

xepton TX-1: transmitter for

mon mobile phone chargers.

1-way-communication. xepton RX-1: Portable receiver The system sports 40 selectable

Included in the package:

The stationary repeater xepton

Softcase with Transceiver TRX-1,

TRP-1 can be used to further the

headset HSB-01, USB-charger

transmission range.

cable, neck strap.

channel groups, which allows for a wide range of applications, for example a multilingual interpreter transmission. Up to 99 transceivers can

Note: The devices of the previous systems »SPL« and »CT« are still available upon demand. Please contact us!

xepton NEW! Technical data: Dimensions (H x W x T): Weight: Colour: Casing material: Battery type: Battery life: Transmission frequency: Modulation: Transmission range: Channels: Frequency response: Sensitivity: Data rate: Connectors: Indicators: Conformities:

Transmitter Xepton TX-1 85 x 50 x 15 mm 66 g black resitant plastic Lithium-Ion rechargeable battery 3,7 V / 1100 mAh Over 10 hours per charge 2,4 GHz (ISM band) FSK, with hopping Up to 300 m in open air / 100 m in buildings Up to 40 simultaneous groups 50 Hz – 7 kHz - 95 dBm 2 Mbps 2 x 3,5 mm jacks MIC / AUX and micro-USB chargeport LC display (group, channel, volume, battery status, mode, signal strength), LEDs (charging status) FCC, CE, RoHS, WEEE

Portable receiver xepton RX-1 Order No.: A-5220-0

The receiver RX-1 provides for up to 20 hours of listening per charge. It is supplied with two 3,5 mm audio output jacks, so every user can apply the hearing component of his choice: Headphones, earphones, neck loops and induction hooks. Unobtrusive wearing is made possible by using the included belt clip or the arm strap holder AM-01 (available as accessory). Included in the package:

Portable transmitter xepton TX-1

Receiver RX-1, In-Ear-Phones ER-01, belt clip BC-1, USB-charger

Order No.: A-5210-0

cable, neck strap.

The small light-weight and elegant transmitter TX-1 is ideal for easy 1-way dialogue. The included belt clip makes it possible to wear the transmitter unobstrusively. Its casing consists – like that of the receiver RX-1 – of sturdy plastic. Included in the package: Transmitter TX-1, plug-in microphone PM-01, belt clip BC-1, USB-charger cable, neck strap.

Technical data: Dimensions (H x W x T): Weight: Colour: Casing material: Battery type: Battery life: Transmission frequency: Modulation: Channels: Voice latency: Sensitivity: Frequency response: Data rate: Connectors: Indicators: Conformities:

Receiver Xepton RX-1 85 x 50 x 15 mm 64 g black resitant plastic Lithium-Ion rechargeable battery 3,7 V / 1100 mAh Up to 20 hours per charge 2,4 GHz (ISM band) FSK, with hopping Up to 40 simultaneous groups < 30 ms - 95 dBm 50 Hz – 7 kHz 2 Mbps 2 x 3,5 mm audio-outputs and micro-USB chargeport LC display (group, channel, volume, battery status, mode, signal strength), LEDs (charging status) FCC, CE, RoHS, WEEE

Accessories for xepton Plug-In microphone PM-01 Order No.: A-5263-0

Belt clip BC-01 Order No.: A-5291-0

Bestell-Nr.: A-5252-0

Plug-in microphone for transmitter

Holder with belt clip for xepton TX-1

Charge- and carry case for 10

xepton TX-1.

and RX-1. Depicted receiver not

pieces xepton TRX-1.

Microphone headset EBB-01 Order No.: A-5271-0

Microphone headset for transceiver xepton TRX-1, with earloop. Weight including cable: 22 g. Microphone headset HSB-01 Order No.: A-5270-0

Microphone headset for transceiver xepton TRX-1, mit head clip and padded loudspeaker. Weight including cable: 64 g Leather carry case CC-01 Order No.: A-5290-0

included. Net weight: 25 g xepton LI-ION for TX-1 und RX-1 Earphone EHE-01 Order No.: A-5281-0

Order No.: A-5260-0

Rechargeable battery for xepton

Single-sided earphone with ear

TX-1 and RX-1.

loop. Weight: 12 g

1100 mAh

Clip-on microphone CM-01 Order No.: A-5264-0

LI-ION 3,7 V /

EHR-01 Microphone headset Order No.: A-5272-0

Microphone with clip, for fastening

Microphone-headset for trans-

on clothing. Cable length: 110 cm

ceiver xepton TRX-1, with In-Earearphone.

TRP-1 Stationary repeater / transmitter Order No.: A-5230-0

ER-01 In-ear earphones Order No.: A-5280-0

Protective case to comfortably

Stationary transmitter for expanding

In-Ear-earphones for xepton RX-1.

wearing the xepton TRX-1. Trans-

the transmission range.

Cable length: 125 cm

Without depiction:

USB-power supply

ceiver not included. Net weight: 36 g Arm band holder AM-01 Order No.: A-5292-0

RCB-20 20-bay charging bag Order No.: A-5250-0

For xepton TX-1 und RX-1. Worn

Charging bag for 20 LI-ION re-

around the arm, velcro fixing.

chargeable batteries of device

USB cable UC-01 Order No.: A-5261-0

Charger cable with USB-A und USB micro-B-connectors. Length 1 m.

types xepton TX-1 and RX-1. CB-20 20-bay charging case Order No.: A-5251-0

Charge- and carry case for 20 pieces xepton TX-1 or RX-1.

MCB-10 10-bay charging case

Order No.: A-5262-0

Power supply with USB-A- connector. Mains adapter for EU, US, CA und Australia included.

introson2.4

»introson2.4 « - Digital listening system with 2.4 GHz radio transmission »introson2.4« is able to convince by its exceptionally clear audio reproduction and its differentiated high-quality sound - reliable and free of noise. This is ensured by the 2.4 GHz frequency, which permits wireless transmission of high bit rates without compression. 3 different tone presets are avail-

Technical data » Introson2.4 « Transmission: Digital FM (stereo) Transmission frequency: 2,4 GHz Frequency response: 30 - 20.000 Hz Distortion: < 0,5 % Signal-to-noise ratio: > 75 dB Operating temperature: 0° C – 55° C Operating timr per charge: approx. 4 h Bat. type Li-Polymer 3,7V 350 mAh Charging time: approx. 5 h Signal range: approx. 25 m Receiver weight: approx 66 g

»introson2.4 «-Set with under-

Order No.: A-4103-S

Set with transmitter and underchin-

Treble emphasis, bass emphasis

receiver. 2 rechargeable batteries

and normal.

included. Volume up to 120 dB.

2.4 is the possibilty to switch from the reception of the TV sound to communication. In this case, the

Order No.: A-4153-S

Neckloop receiver for »introson2.4«. 1 rechargeable battery included. Stand-alone transmitter Order No.: A-4114-0

Transmitter without charger bay. For use with additional receivers and multiple rechargers.

chin receiver

able at the push of a single button:

A special feature of the introson

Additional neckloop receiver

»introson2.4 LR «-Set with neckloop-receiver Order No.: A-4113-S

Silicone earpads for »introson2.4 « underchin receivers Order No.: A-4998-0

24 sets of spare earpads. 5-bay recharger Order No.: A-4192-0

For up to 5 »introson2.4«-receivers.

receiver picks up the environment’s

The neckloop receiver transfers

sounds with its inbuilt microphone

sound via induction directly to

and amplifies them. This makes

hearing aids equipped with a

it possible to converse with other

T-coil. An auxillary output allows

Aluminium charger case and con-

people in the room at any time.

the connection of headphones or

tainer for up to 10 receivers and 1

induction hooks.

transmitter of »introson2.4«.

The signal range is approx. 25 metres. Due to the possibility of connecting an almost unlimited amount of receivers to one transmitter, this system is ideal for cinemas, churches and similar sized rooms.

Digital 2.4 GHz FM transmission system

10-bay charger case Order No.: A-4184-0

2 chargers type A-4192-0 included. Additional underchin receiver Order No.: A-4153-S

Underchin receiver for »introson2.4«. 1 rechargeable battery included.

Exterior power connector. Technical data Charging time: approx. 5 hours (0 - 100%) Dimensions: 64 x 38 x 15 cm

The percentage of people

handicapped people in a general

The equal treatment of the dis-

with impaired hearing is on the

way, without any particular difficulty

advantaged and minorities has,

increase.

and without necessitating the help

however, now become a central

of third parties.«

concern of the European Union

The demographic shift in age has

Accessible sound: Greater independence in public life for people with hearing disabilities.

had a decided impact on this de-

Needless to say, the term acces-

velopment. Hearing loss – even if

sibility also includes the access of

only slight – can now be detected

the hearing impaired to acoustic

in every fourth 50- to 59-year-old.

information – starting with such

Among people over 70, the number

elementary sounds as alarms and

who are hard of hearing is already

emergency signals to educational

considerably higher at more than

information and communications

fifty percent – with significantly

and right on up to acoustic par-

greater hearing loss. The percent-

ticipation in cultural and sporting

age of people in these age groups

events.

is also expected to increase in the future.

Even contemporary hearing aids are not able to guarantee good

Right to participation in

hearing and clear understanding

cultural life

in every situation. In noisy environ-

This so-called »50plus Generation« is very active in shaping public life. They represent a group with considerable purchasing power, take advantage of a comprehensive range of cultural offers and use all contemporary media. And they also demand – quite justifiably – unlimited access to information and

ments or in rooms with extreme resonance or echoes, for example, these systems often quickly reach their limits. That’s why audio transmission systems that effectively include or supplement hearing aids are now often used, particularly in places where interruption-free communication is important.

communication – which constitutes

These systems feed the sound

acoustically accessible infrastruc-

either directly into a hearing aid or

tures in the broadest sense.

a CI system or make it available to the user via special receivers.

The accessible design of public and private infrastructures The German law for the equality of

National laws on equality and their implementation

disabled persons (BGG) defines

The application of equality guide-

accessibility as follows: »Buildings

lines (anti-discrimination laws) is

and other facilities, means of trans-

as diverse as the cultural attributes

port, technical apparatus, systems

of the individual European states.

for information processing, acous-

While far-reaching measures en-

tic and visual sources of information

abling equal treatment are already

and communication facilities as well

common in France, the Nether-

as all other areas of life are acces-

lands, Great Britain and Scandi-

sible when they are useable by

navian countries, for example, the provision of accessible infrastructures is lagging behind in other countries – as in Germany.

(EU Basic Treaty). In this respect, the consistent implementation of accessible infrastructures – particularly in government offices, but also in restaurants, at event venues and in public transportation systems – will only be a question of time for all EU nations. Europe’s self-image The EU appeals to all its member states to not discriminate against anyone because of his/her personal situation. Article 26 of the Charter of Fundamental Rights of the European Union, for example, reads: »The Union recognises and respects the right of persons with disabilities to benefit from measures designed to ensure their independence, social and occupational integration and participation in the life of the community.«

Technical solutions for

The table (below) provides a brief

components, list their main techni-

accessible sound

overview of the main selection

cal data and provide you with as-

criteria.

sistance in making your purchasing

In addition to building acoustics

decisionl.

and electro-acoustic public ad-

The main advantage of all these sys-

dress systems (DIN 18041), the

tems is that the sound is delivered to

Special skills or knowledge are often

following systems can be used for

the listeners in a pure, undistorted

required in the planning, project

a significantly higher proportion of

form that is not influenced by the

development and installation of

direct sound:

distance of the listeners to the

sound transmission systems. Thatâ&#x20AC;&#x2122;s

sound source or by any annoying

why we offer system operators and

background noise in the room.

architects a comprehensive con-

Induction loop systems Infrared transmission systems Radio-frequency transmission

AUDIOropa provides

systems

a comprehensive range of

In order to ensure that the listening

sulting and services package in this field. From qualified information to competent support in the planning

assistive listening services.

process and right on up to the

systems provided are effective, it is

The AUDIOropa program is struc-

installation and first-time operation

important to compare the require-

tured in a cross-system manner

of the system, we will accompany

ments of the venue and its architec-

and includes components and the

you every step of the way with our

tural features with the properties of

complete range of accessories

consulting services to ensure the

the transmission systems early in

for transmission systems using

effective implementation of your

the decision-making process.

all three of the physical principles

professional audio transmission

mentioned here. The following

system.

AUDIOropa offers a comprehensive package of technology, consulting and services for the professional use of audio transmission systems.

pages will present the technical A comparison of systems using different physical transmission principles

Induction loop systems

Infrared transmission systems

Radio-frequency transmission systems

Small to medium-sized conference rooms Partial provision, e.g. information counters, reception areas, living areas Cinemas (particularly multiplex cinemas)

Courtrooms (data confidentiality), conference rooms City centres (high radio-frequency emissions) Auditoriums, theatres Schools and universities

Stadiums, sport arenas

Churches Open-air applications

Direct reception in the hearing aid (without a special receiver) Tour-guide systems available Locally limited reception range

Not susceptible to electromagnetic interference Interference-free parallel operation in neighbouring rooms

Portable systems available Excellent sound quality Several channels available Service provided for very large areas/large range Easy installation Inexpensive components and installation Inconspicuous transmitter positioning (aesthetics) Transmitter and receiver do not require direct line of sight

Optimally suited or applicable Limited suitability (depending on details of set-up) or limited applicability Suitable in exceptions or hardly applicable

* For use of low-overspill systems (LOS) â&#x20AC;&#x201C; ** Service provision in partial areas (selected seat rows/blocks)

Keyword list

Induction loop amplifier ................ 6; 7; 8; 9; 12; 13

Accessible sound ......................................... 26; 32

Induction loop Cross-the-counter......................... 7

Aluminium case ...................................... 16; 25; 31

Induction loop kit .................................................. 6

Automatic Gain Control (AGC) ....................................... 8; 9; 11; 12; 13; 17

Induction loop pad ......................................... 7; 17

B Battery .................................................... 16; 25; 30

Induction loop receivers ..................................... 17 Induction loop system .......................................... 4 Infrared receivers ............................................... 23 introson2.4 .......................................................... 31

C Carrier frequencies............................................. 19

Case ............................................. 6; 16; 25; 30; 31

LA-60 .................................................................... 7

Charger ...................................... 15; 16; 23; 25; 31

LA-90 .................................................................... 6

Cinch (RCA) ....................................................... 16

LA-240 .................................................................. 6

CI system.............................................. 4; 6; 31; 32

LOS installations ................................................. 10

Coaches ............................................................... 6

Low-overspill systems (LOS) .......... 5; 9; 10; 12; 13

Condenser microphone........................................ 5

LPU-1.................................................................. 15

Conducting material ............................................. 5 Copper ribbon / cable ........................................ 17 Crescendo 50 ..................................................... 15

D Directional sensitivity .......................................... 10 Dynamic microphones ......................................... 5

Magnetic field ................................................. 4; 10 Measuring device for induction loop systems....................................... 17 Microphone EH1205............................................. 7 Multi-channel operation ...................................... 19

Earpieces ............................................... 15; 23; 31

National laws ...................................................... 32

Electret microphone ............................................. 5

Overspill ......................................... 5; 9; 10; 12; 13

Equality of disabled persons law (BGG) ........................................................... 32 Equality ............................................................... 32 European standards ............................................. 4 European Union.................................................. 32

F Field strength meter .......................................... 17 Field strength reduction .................................... 10 Function of an induction loop system .......................................................... 4

G German equality of disabled persons law (BGG) ............................................. 32 Headphones ....................................................... 23 Headset .............................................................. 30 High-performance infrared transmitter..........19; 22

P PLL microphone ........................................... 17; 24 Plug-in microphone ............................................ 30 Pocket transmitter............................................... 24 Portable induction loop systems .......................... 6 PR-22+ ............................................................... 23 PRO IR-202......................................................... 20 PRO IR-400......................................................... 22 PROLOOP C ......................................................... 8 PROLOOP DCCplus ............................................. 9 PROLOOP FSMplus ........................................... 17 PROLOOP LOS .................................................. 11 PROLOOP LOS-W .............................................. 14 PROLOOP LOSplus............................................ 13

R RCI-102 .............................................................. 23

Keyword list

Reception range ........................................... 19; 22 Rechargeable/replacement battery .................................................... 16; 25; 30 Recharger................................... 15; 16; 23; 25; 31

S Silicone earpieces .................................. 15; 23; 31 S/PDIF Audio converter ................................ 15; 25 Standards ............................................................. 4

T Telecoil.................................................................. 4 Teleloop ...................................... 18; 19; 26; 29; 31

U UHF101 (wireless microphone) ......................... 24 UHF401 (wireless microphone) .......................... 24 Under-the-chin receiver...................... 6; 15; 19; 25

W Wireless microphones ........................................ 24

X xepton 2.4 GHz .............................................28-30 XLR ..................................... 8; 9; 11; 12; 16; 17; 24 XLR connection cord .......................................... 17

Welcome to a dialogue about audio transmission systems for professional use: www.AUDIOropa.com

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