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Audio transmission systems
for professional use – 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
2017
2
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........................15
General accessories for induction loop systems............................16
Infrared transmission systems
Function and use of infrared transmission systems........................18
Infrared transmission systems for medium range...........................20
Audio transmission
systems for professional
use – mobile and
stationary
High-performance infrared transmitter
with integrated modulator................................................................22
Infrared receivers............................................................................23
Accessories for infrared transmission systems...............................24
Radio-frequency transmission systems
Function and use of radio-frequency transmission systems...........26
2.4 GHz transmission systems........................................................28
Soundfield - system
Function and application of Soundfield-Systems............................32
Frontrow Juno..................................................................................34
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.
Appendix
Accessible sound in private and public facilities............................36
Technical solutions..........................................................................37
Comprehensive service offer from AUDIOropa...............................37
Systems based on different physical principles
and their main areas of application (table).....................................37
Keyword list.....................................................................................38
3
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
European standards and
legislation
receivers are required. All that’s
The technical requirements for in-
needed is the hearing aid.
duction loop systems are defined in
Most modern hearing aids are now
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
4
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.
Rooms without equally rectangular or square floor plans
Strong steel reinforcement
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
Selection of the amplifier:
positioned outside the loops. The
Area used
Reception, counter: TV rooms, nursing homes, living rooms:
Conference rooms, theatres:
Very large induction loop systems: Systems with little overspill: Portable induction loop system:
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.
the microphones as well as other
technical equipment that affects
the magnetic field.
If possible, avoid using dynamic
microphones in combination with
induction loop systems. If they
cannot be avoided, they must be
Loops are generally laid around
the outside perimeter of the room.
Page/s
6/7
7
7/8
8
9
12
9
12
10
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
Reduce the area of the loop! The
connection wire to the loop must
tively transmitted to all the »coils«
be firmly twisted or closely parallel.
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
6
Using a condenser or electret
The audio signals are then inducinside the loop.
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
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.
5
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.
6
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
42 x 180 x 140 mm
(HxWxD):
Weight:
905 g
Colour:silver-metallic
Power supply:
12 – 30 V DC
via adapter (extern)
Audio-input:
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.
2
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«
7
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.
8
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.
9
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 ser­v ices offered by
to reduce the signal strength
outside the loop.
Extremely low overspill at reduced directional sensitivity.
ers in planning LOS installations.
have to be operated out of phase
with each other to achieve an
HUMANTECHNIK service for
equal distribution of the desired
planning low-overspill systems
desirable signal-free areas.
tomisation and configuration
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
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,
10
Each individually optimal cus-
An LOS system consists basically
This configuration prevents the
We provide competent support to
architects, technicians and install-
For these patterns, two loops
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 »eavesdropping effect« 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.
11
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)
12
Technical data
Mains connection: 230 – 240 V AC, 50 Hz, 25 – 700 W
Coverage: 300 m² acc. to IEC 60118-4
Induction loop output
Max. power: 2x 5 A RMS, 2x 14 A from peak to peak, 1-5 ms, 1 kHz,
continuous 1 kHz, short-circuit-proof
Max. voltage:
2x 17 V RMS, 2x 24 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 range: 100 – 5,000 Hz (±3 dB)
Distortion: <1%
Cable connection: 2 screw connections on rear panel of the amplifier
Outputs
Master OUT: 0 dBm, RCA (with AGC function)
Slave OUT: 0 dBm, RCA (with AGC function)
Inputs
IN 1: 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
IN 2: Dual RCA connections, 45 mV – 10 V RMS / 10 kΩ
IN 3: Dual RCA connections, 45 mV – 10 V RMS / 10 kΩ
AGC
Dynamics: > 70 dB
Rise time: 2 – 500 ms
Fall time: 0.5 – 20 dB/s
Rise and fall times depend on the currently active channel
Controls and displays
Loop setting: 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
PROLOOP LOS
Order No.: A-4252-0
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.
The system is equipped with Automatic Gain Control (AGC) to produce
stable sound with outstanding
speech reproduction, even under
difficult acoustic conditions. The
integrated monitor output for 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
13
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)
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-overspillsystem and contains all the necessary electronics in a well accessible
casing.
The connectors on the front of the
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.
14
Technical data
Mains connection: 230 – 240 V AC, 50 Hz, 25 – 700 W
Coverage: 300 m² acc. to IEC 60118-4
Induction loop output
Max. power: 2x 5 A RMS, 2x 14 A from peak to peak, 1-5 ms, 1 kHz,
continuous 1 kHz, short-circuit-proof
Max. voltage:
2x 32 V RMS, 2 x 45 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 range: 100 – 5,000 Hz (±3 dB)
Distortion: <1%
Cable connection: 2 screw connections inside the amplifier casing
Outputs
Master OUT: 0 dBm, RCA (with AGC function)
Slave OUT: 0 dBm, RCA (with AGC function)
Inputs on front side
Line:: 3,5 mm jack
LINE sensitivity 37 mV – 10 V RMS / 10 kΩ
MIC: 3,5 mm jack, balanced, with 3 V DC supply
MIC sensitivity 2.5 mV – 10 V RMS / 10 kΩ
MIC/Line: 6.3 mm jack, line or MIC input selector, 48 V phantom voltage switchable
Inputs inside
MIC: 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 underthe-chin receiver can swivel to stay
firmly fixed in the user’s ears even
when he/she moves his or her head.
An under-the-chin receiver serves
S/PDIF Audio converter
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.
Single-bay recharger for the
LPU-1
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)
15
Multiple charge
stations, storage and
transport components
for loop receivers
A100: Additional battery for
XLR(M) adapter cord -->
3.5 mm cinch
the LPU-1
Order No.: A-4933-0
Order No.: A-4970-0
e.g. to connect to CD players or
12-battery recharger for the
stereo systems
A100 battery
Order No.: A-4974-0
Induction loop pad
(description, see p. 7)
Order No.: A-4910-0
Table microphone with
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.
16
»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 mea­
XLR(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)
17
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
consists of at least one transmitter
and facilities, ...
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.
18
there plays a decisive role,
for example in courtrooms or
conference rooms,
and areas, ...
... in which several transmission
in which the transmitter is
installed.
Transmission is reliable and
absolutely free of the interference 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
pass through walls, which
reduces reception to the room
In addition, infrared audio transmis-
this technology proves superior
The transmitter sets up an
... in which the confidentiality of
Infrared light signals cannot
Coverage
While the range of systems designed for private use is limited
Other factors affecting infrared
Light-coloured floor, wall and
transmission technology:
ceiling areas reflect infrared
energy more strongly. This can
The transmitter does not focus
increase the reception range.
to about 10 or 20 metres, high-
the emission of the infrared
powered infrared transmitters are
light impulses, i.e. it uses a
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
audio transmission systems:
Portable/mobile systems are
available.
Multi-channel operation pro-
The carrier frequencies of 2.3
to 3.8 MHz (basic band) mini-
The signals do not only travel
mize the probability of interfer-
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.
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
Dark, low-reflection floors,
In order to provide coverage
for areas that exceed the maximum range of the individual
transmitters, it is necessary to
install several transmitters at
In any case, a technically
with TV listening systems for
correct, precise positioning
at-home use.
of the transmitters is
Reliable, inconspicuous
audio transmission for
rooms up to 900 m²
in size
different locations and connect
them in parallel.*
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.).
19
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 240°.
20
A set for ceiling and wall mounting
is included in the delivery. A tripod
(Item-No: A-4986-0) is available as
an accessory (page 25).
PRO IR-202 at a glance
Broad exit angle of infrared
signals
Configuration with 1 and 2
channel transmission
Combinable: Two
PRO IR-202 transmitters can
be linked
Power supply of secondary
unit by interconnecting cable
Operation of combined
configuration with a single
power supply unit
Usable as fixed (wall or ceiling
mount) or mobile installation
(e.g. tripod, see page 25).
Specifications
Power supply:
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«
Connection cable:
2 x barrel plug 2,5 mm
Carrier frequency:
2,3 MHz (channel 1) and 2.8 MHz (channel 2)
Infrared transmission power:
0.7 W
Ranges/ Single transmitter: 1-channel operation 180 m²
Supply areas:
Combined mode (2 transmitters): 370 m²
Input
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:
CE, WEEE, RoHS
Combined mode
Combining two PRO IR-202 with
each other occurs via the supplied
installation kit. All necessary cables
are included.
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.
PRO IR-202: Greater range through
combining two transmitters
Range example
Single transmitter PRO IR-202
PRO IR-202 + one further trans-
mitter PRO IR-202 in identical
orientation
21
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
PRO IR-400
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.
22
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 ratio54 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)
23
Accessories
for infrared
transmission
systems
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: ±0.005 %,
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:
Noise suppression:
Audio output:
Power supply:
Dual antenna, PLL
> 90 dB
XLR(M) or 6.3 mm jack /
Composite signal:
6.3 mm jack
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
Portable pocket transmitter
phone system is designed for use
with PLL microphone...
anywhere where up to four different
tions, in churches, for example.
Four independent handheld microphones transmit the voices
wirelessly to the stationary receiver,
which in turn feeds the signals via
cable into an audio output device,
such as an induction loop amplifier
... to be used with the
UHF101 set
Order No.: A-4460-0
... to be used with the
UHF401 set
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.
24
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-
speakers talk from different loca-
2.4 GHz microphone system for
The small lightweight transmitter
has two separate microphone-in
ports. Included are: 1 transmitter,
rechargeable battery, charger cable,
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
S/PDIF Audio converter
Order No.: A-4963-0
Order No.: A-4903-0
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-
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
for 10 underchin receivers
5-bay recharger for RCI-102
receivers
Order No.: A-4976-0
is included.
Tripod for infrared transmit-
Order No.: A-4986-0
receiver can be used with a wide
range of different audio devices.
Accessories
for infrared
transmission
systems
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
A100 batteries
Order No.: A-4974-0
Time-saving recharger for users
and transported. The power connector is on the outside, a power
supply unit is included.
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
25
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 – to
a microphone system or any other
signals to the hearing aid.
and independence from
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.
26
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
beyond this, most importantly because they have been designed
special events
or transportation.
for professional applications – for
The availability and use of several
example:
channels makes it possible to
spacious event venues,
the inductive transmission of the
floor plans and architec-
can be connect to the earphones or
up the audio signals to transmit
with teleloops, which provide for
Due to their ability to
in particular, there is hardly an
in sport arenas or at other
The receivers can be equipped
and for open-air applications
output jacks are also available and
audio system, for example – picks
them wirelessly to the receivers.
provide large coverage
Amplifying receivers with audio
in churches and other
assembly halls,
in lecture or seminar rooms, as
in schools and universities,
pro­v ide different information at
the same time, for simultaneous
interpreting into different languages,
for example, or for the treatment
of different topics for several liste­
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.
The transmitters can be
installed inconspicuously
(except in metal enclosures)
and do not mar or spoil the
overall architectural picture.
Coverage
With respect to coverage, RF transmission systems are far superior to
the two other transmission technologies described in this brochure.
it cannot be ruled out that the
national regulations in some
countries only release certain
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
With coverage ranges of up to more
coverage ranges or the signal
than 300 metres, it is possible to
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
information even in large groups or
groups in different locations.
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.
27
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
Portable transceiver xepton TRX-1
Order No.: A-5200-0
The convenient, lightweight and
defined as master transmitter and
sturdy devices or portable use are
2 further ones of free choice being
The two-way transmitter TRX-1 can
available in the following models:
able to speak at the same time.
be worn on the belt by means of
xepton TRX-1: The two-direc-
All portable xepton-devices have a
tional transceiver is a transmit ter and receiver in one and
permits talking and listening.
micro-USB charging socket, which
xepton TX-1: transmitter for
1-way-communication.
xepton RX-1: Portable receiver
The system sports 40 selectable
channel groups, which allows for a
makes it possible to charge these
with any computer or the most
the carry case CC-01 (available as
accessory). A sturdy and resistant
plastic body protects the inner
electronic components.
common mobile phone chargers.
Included in the package: TX-1 and RX-1 feature charging
Softcase with Transceiver TRX-1,
contacts for use with the charger
headset HSB-01, USB-charger
cases DC-20 and DC-40 (20 / 40
cable, neck strap.
charging slots)
wide range of applications, for exam-
The stationary transmitter xepton
ple a multilingual interpreter trans-
T-1 can be used for more perma-
mission. Up to 99 transceivers can
nent installations.
Note: The devices of the previous systems »SPL« and »CT« are still available upon demand. Please contact us!
28
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-5221-0
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.
The device also features contacts
for drop-in charging.
Unobtrusive wearing is made possible by using the included belt
clip or the arm strap holder AM-01
(available as accessory).
Portable transmitter xepton TX-1
Order No.: A-5211-0
Receiver RX-1, In-Ear-Phones
The small light-weight and elegant
ER-01, belt clip BC-1, USB-charger
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.
The device also features contacts
for drop-in charging.
Included in the package:
Transmitter TX-1, plug-in microphone PM-01, belt clip BC-1,
USB-charger cable, neck strap.
DC-20
Included in the package: 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
TX-1 und RX-1 are now
equipped with „Drop-In“
charging contacts. ausgestattet. These allow for
hassle-free recharging
with the charging cases
DC-20 and DC-40.
Ideal for applications,
which require a larger
amount of devices, for
example museum- or
tourguidance.
29
Accessories for
xepton
Plug-In microphone PM-01
Order No.: A-5263-0
Plug-in microphone for transmitter
xepton TX-1.
Microphone headset EBB-01
Order No.: A-5271-0
Microphone headset for transceiver
xepton TRX-1, with earloop.
Microphone headset HSB-01
Order No.: A-5270-0
Microphone headset for transceiver
xepton TRX-1, mit head clip and
padded loudspeaker.
Leather carry case CC-01
Order No.: A-5290-0
Protective case to comfortably
wearing the xepton TRX-1. Transceiver not included.
Arm band holder AM-01
Order No.: A-5292-0
For xepton TX-1 und RX-1. Worn
around the arm, velcro fixing.
USB cable UC-01
Order No.: A-5261-0
Order No.: A-5281-0
Onesided earphone with ear loop.
Clip-on microphone CM-01
Order No.: A-5264-0
Microphone with clip, for fastening
on clothing. Cable length: 110 cm
T-1 Stationary transmitter
Order No.: A-5230-0
Stationary transmitter for RX-1.
Without depiction:
RP-1 Repeater
Order No.: A-5231-0
Stationary repeater for signal-range
enhancement. Image similar to T-1.
RCB-20 20-bay charging bag
Order No.: A-5250-0
Charging bag for 20 LI-ION rechargeable batteries of device
types xepton TX-1 and RX-1.
CB-20 20-bay charging case
Order No.: A-5251-0
Charge- and carry case for 20
micro-B-connectors. Length 1 m.
pieces xepton TRX-1, TX-1 or RX-1.
Order No.: A-5291-0
Holder with belt clip for xepton TX-1
and RX-1. Receiver not included.
xepton LI-ION for TX-1 und RX-1
Order No.: A-5260-0
Rechargeable battery for TX-1
and RX-1.
EHR-01 Microphone headset
Order No.: A-5272-0
Microphone-headset for xepton
TRX-1, with In-Ear-earphone.
ER-01 In-ear earphones
Order No.: A-5280-0
In-Ear-earphones for xepton RX-1.
Charger cable with USB-A und USB
Belt clip BC-01
30
Earphone EHE-01
MCB-10 10-bay charging case
Order No.: A-5252-0
Charge- and carry case for 10
pieces xepton TRX-1.
USB-power supply
Order No.: A-5262-0
Power supply with USB-connector.
Adapters for EU, US, CA and AU.
DC-20 20-bay charging case
Order No.: A-5253-0
Drop-in charging case for 20
pieces xepton TX-1 or RX-1.
DC-40 40-bay charging case
Order No.: A-5254-0
Drop-in charging case for 40
pieces xepton TX-1 or RX-1.
Rack-Adapter for T-1
Order No.: A-5235-0
Includes a remote antenna for
stationary installation of the T-1
transmitter within a rack.
introson2.4
»introson2.4 « - Digital listening
system with 2.4 GHz radio
transmission
»introson2.4«
features exception-
ally clear audio reproduction and
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. The transmitters are
equipped with an optical-digital
(Toslink) connector.
3 different tone presets are available at the push of a single button:
Treble emphasis, bass emphasis
and normal.
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
Inputs:
Analogue audio-in, Toslink
Bat. type
Li-Polymer 3,7V 350 mAh
Charging time:
approx. 5 h
Signal range:
approx. 25 m
Receiver weight:
approx 66 g
chin receiver
Order No.: A-4103-S
Set with transmitter and underchinreceiver. 2 rechargeable batteries
neckloop-receiver
sounds with its inbuilt microphone
and amplifies them. This makes
it possible to converse with other
people in the room at any time.
connecting an almost unlimited
Stand-alone transmitter
Order No.: A-4114-0
Transmitter without charger bay. For
use with additional receivers and
multiple rechargers.
Silicone earpads for »introson2.4«
underchin receivers
Order No.: A-4998-0
24 sets of spare earpads.
Order No.: A-4192-0
For up to 5 »introson2.4«-receivers.
Order No.: A-4113-S
The neckloop receiver transfers
sound via induction directly to
10-bay charger case
Order No.: A-4184-0
hearing aids equipped with a
Aluminium charger case and con-
T-coil. An auxillary output allows
tainer for up to 10 receivers and 1
the connection of headphones or
transmitter of »introson2.4«. induction hooks.
2 chargers type A-4192-0 included.
The signal range is approx. 25
metres. Due to the possibility of
1 rechargeable battery included.
5-bay recharger
2.4 is the possibilty to switch from
receiver picks up the environment’s
Neckloop receiver for »introson2.4«.
included. Volume up to 120 dB.
»introson2.4 LR «-Set with
communication. In this case, the
Order No.: A-4165-S
»introson2.4 «-Set with under-
A special feature of the introson
the reception of the audio input to
Additional neckloop receiver
Digital 2.4 GHz
FM transmission
system
Exterior power connector.
Additional underchin receiver
Order No.: A-4153-S
amount of receivers to one transmit-
Underchin receiver for »introson2.4«.
ter, this system is ideal for cinemas,
1 rechargeable battery included.
Technical data
Charging time: approx. 5 hours (0 - 100%)
Dimensions: 64 x 38 x 15 cm
churches and similar sized rooms.
31
Frontrow Juno:
For effortless
communication
in school.
When students can’t hear the
Most classrooms aren’t the ideal
the room, reduces unwanted echo,
teacher clearly, class is over
place for learning.
and sounds up to 25% greater in
before it starts.
To understand 100% of speech
tional or flatpanel speakers.
You’d be shocked to learn how
sounds, children need to hear the
much kids miss in class. And most
teacher’s voice 15 decibels louder
Without tedious installation and
likely, so would they. FrontRow au-
than background noise. But in a
compromises
dio systems overcome a problem
typical classroom, the teacher’s
most people aren’t even aware
voice is barely 5 decibels above the
of – that 25% of what the teacher
noise — so only those nearest the
says in class never reaches the
teacher are fully engaged.
students’ brains.
JUNO does not need to be installed. Its speakers and the receiver are located in a single readyto-use tower. Because it is a digital
Students farthest from the teach-
multi-speaker array rather than a
FrontRow helps students with
er can miss up to 40% of what’s
single point source, Juno delivers
impaired hearing.
being said.
excellent stereo sound coverage in
Did you know that up to 43% of
the kids in primary school would
fail a basic hearing test? Students
with impaired hearing have special
No wonder some lose focus, cause
disruption, and perform more
poorly.
an affordable, scalable package.
And the onboard next-generation
Adapto™ digital engine actively
scans audio 375 times per second
problems to hear the teacher’s
In the past, the best way to get
to suppress feedback squeal be-
voice when exposed to the usual
even sound coverage in the
fore it starts.
background noise in class.
classroom was to cut holes in
the ceiling and install numerous
There is a need for a fast and
easy solution to gain more efficiency without extra effort.
FrontRow JUNO can help.
speakers.
JUNO is packed with technology which will provide excellent
features, like the amazing voice
That’s no longer necessary, thanks
control and the processing of
to FrontRow’s SonicSuffusion™
media content.
technology built into Juno. Juno’s
Teacher microphones: An essen-
It eases the effective communi-
engineers packaged three digitally-
cation between students, tutors
controlled drivers into a single unit
and school equipment. FrontRow
that sets up in minutes — and yet
By ensuring the teacher’s voice
gives you high additional utility
evenly fills your classroom with
sounds clear no matter where stu-
value - this applies to students with
the kind of exciting, multi-layered
dents sit, FrontRow microphones
temporary hearing problems (such
stereo sound you’d expect from a
can overcome the hurdles of un-
as caused by influenza etc.) as well
much larger installed system..
amplified classrooms. This audio
as students with hearing aids or
cochlear implants.
Students with hearing aid systems can directly connect to
JUNO - this way, the irritating
background noise can be almost
completely eliminated. This is a
significant feature, regarding the
current quest for including hearingimpaired people in every-day life.
32
volume over distance than conven-
How Juno fills your room with
sound
Juno’s SonicSuffusion technology is
intelligent. First, its digital crossover
network keeps the two mid-range
drivers and the bass module in
tial tool for success.
technology makes a significant
impact on the attentiveness and
achievement of hundreds of thousands of students every day.
Say what you want to happenyour voice as remote control
phase and reproducing your audio
A teacher’s voice is a powerful
at peak efficiency. Then, we exploit
educational tool – now more than
the physics of constructive wave
ever. The Juno digital sound system
propagation to rescue the sound
listens as attentively as students do,
As this technology can easily be
energy that conventional and flat-
so teachers can control important
incorporated in already existing
panel loudspeakers waste and
functions simply by talking to it.
A/V systems, you are closer to a n
redirect it forward and to the sides
Do you need more volume? Just
easy-to-use, media-rich method of
in a 180° horizontal layer. This arc of
say so!
teaching than you would believe.
sound spreads more evenly across
Extendable? Definitely yes!
JUNO can be used as a standalone system in the classroom, but
this is by far not the only possibility.
With JUNO CONNECT™ it can be
extended into a versatile tool.
In a school with a FrontRow network
and the according system setup,
the teacher can control projectors,
screens and other devices simply
Do you need a larger area of sound
coverage? The Juno tower easily
connects to FrontRow’s IR Speakers for an even fuller immersive
audio.
Are more student microphones required? Juno can handle up to five
simultaneous microphones without
tedious ‘over-and-out’ or waiting
between speakers.
with their voice, without further
Numerous other features are cus-
actions.
tomizable through additional mod-
The technology can extend beyond
the classroom. Teachers can talk to
ules or software upgrades — today
and in the future.
the front office just by saying “inter-
Just ask us - we will glady give
com.” And spoken announcements
you more information!
How to build a better
teaching environment
from the head office can come
through the Juno Connect system
too — much more clearly than
through a conventional PA system.
As basic or advanced as you
need it to be
The Juno platform easily adapts to
serve the diverse needs of technology staff, curriculum directors, and
teachers. Whether you want basic
features with 5-minute setup, a fully
installed media center, or anything
in between, Juno can make it
happen.
You are seeking:
• to improve student achievement
• to improve attentiveness and
behaviour
• to put less stress on the
teacher’s voice
• to include students with
impaired hearing
JUNO®
• Voice control
• Installation-free
• Up to 5 microphones
• Lesson capture
• a future-oriented education
tool
33
STARTER-SET
The Juno starter-set contains:
- the speaker tower
- a teacher microphone
- a student microphone
- a recharger
and all necessary connection leads.
Order No.: A-4720-0
Components for
frontrow-Juno
TEACHER MICROPHONE
• Delightfully simple — does more with just one
button than other microphones do with six
• Accepts voice commands to control the system
• Automatic switch-off when not in use
• Better sound from a smaller, lighter microphone
thanks to superior microphone suspension, better frequency response and low-distortion digital
synthesis
• Class2Class™ distance-learning support
• OptiVoice™ speech clarification
• PrioriTeach™ teacher voice priority
• Support for students with hearing impairment
Order No.: A-4750-0
STUDENT MICROPHONE
• Up to 4 student microphones can be used
at the same time, for smooth participation
and natural discussions
• Easy to hold, even for small hands
• Digitally nameable for identification on LCD
• Hands-free option
Order No.: A-4755-0
34
RECHARGER
• Teacher and student microphones can be
recharged in it.
Bestell-Nr.: A-4773-0
Components for
frontrow-Juno
RECHARGEABLE BATTERY
• Each microphone is powered by a long
lasting lithium-ion barttery
Order No.: A-4768-0
EXPANSION SPEAKER SET
• For stationary Juno installations in larger rooms.
Easy setup, for added sound immersion. The set
consists of two speakers.
Order No.: A-4726-0
• A loudspeaker module is needed to connect the
expansion speaker set
Order No.: A-4744-0
RECEIVER/SPEAKER TOWER
• Installation-free, infrared
• Adapto™ Generation II digital signal processing
and feedback suppression
• 2.1 stereo line array, expandable with ceiling
or wall speakers
• Lockable LCD touchscreen interface
• Class2Class™ distance-learning support
• OptiVoice™ speech clarification
• PrioriTeach™ teacher voice priority
• ALD output supports students with hearing impairment
35
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.
36
(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. That’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
systems
In order to ensure that the listening
sulting and services package in this
AUDIOropa provides
field. From qualified information to
a comprehensive range of
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 systemsInduction
InfraredRadio-frequency
using different physicalloop
transmissiontransmission
transmission principlessystems
systemssystems
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) – ** Service provision in partial areas (selected seat rows/blocks)
37
Keyword list
A
I
Accessible sound.......................................... 26; 36
Induction loop amplifier................. 6; 7; 8; 9; 12; 13
Aluminium case....................................... 16; 25; 31
Induction loop Cross-the-counter.......................... 7
Automatic Gain Control
(AGC)........................................ 8; 9; 11; 12; 13; 17
Induction loop kit................................................... 6
B
Battery..................................................... 16; 25; 30
Induction loop pad.......................................... 7; 17
Induction loop receivers...................................... 17
Induction loop system........................................... 4
Infrared receivers................................................ 23
C
introson2.4........................................................... 31
Carrier frequencies.............................................. 19
Case.............................................. 6; 16; 25; 30; 31
Charger....................................... 15; 16; 23; 25; 31
Cinch (RCA)........................................................ 16
CI system............................................... 4; 6; 31; 32
J
Frontrow Juno.................................................32-35
L
Coaches................................................................ 6
LA-60..................................................................... 7
Condenser microphone......................................... 5
LA-90..................................................................... 6
Conducting material.............................................. 5
LA-240................................................................... 6
Copper ribbon / cable......................................... 17
LOS installations.................................................. 10
Crescendo 50...................................................... 15
Low-overspill systems (LOS)........... 5; 9; 10; 12; 13
D
LPU-1................................................................... 15
Directional sensitivity........................................... 10
Dynamic microphones.......................................... 5
M
Magnetic field.................................................. 4; 10
E
Earpieces................................................ 15; 23; 31
Electret microphone.............................................. 5
Equality of disabled persons
law (BGG)............................................................ 36
Equality................................................................ 36
Microphone EH1205.............................................. 7
Multi-channel operation....................................... 19
N
European standards.............................................. 4
National laws....................................................... 36
European Union................................................... 36
Overspill.......................................... 5; 9; 10; 12; 13
F
Field strength meter ........................................... 17
Field strength reduction ..................................... 10
Frontro Juno...................................................32-35
Function of an induction
loop system........................................................... 4
G
German equality of disabled
persons law (BGG).............................................. 36
Headphones........................................................ 23
Headset............................................................... 30
High-performance infrared transmitter..........19; 22
38
Measuring device for
induction loop systems........................................ 17
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
Soundfield system..........................................32-35
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
39
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dialogue about audio
transmission systems for
professional use:
www.AUDIOropa.com
HUMANTECHNIK GHL AG
Hoorexpert BV
Im Wörth 25
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[email protected]
Internet: www.humantechnik.com
Internet: www.hoorexpert.nl
Internet: www.AUDIOropa.com
www.humantechnik.com
·
HUMANTECHNIK GmbH
Vertriebsbüro Berlin
SMS Audio Electronique Sàrl
Garibaldistraße 60
173 rue du Général de Gaulle
D-13158 Berlin
Tel.: +49 (0) 30 / 91 74 50 01
Fax: +49 (0) 30 / 91 74 50 02
[email protected]
www.AUDIOropa.com
... a Division of the Humantechnik Group
F-68440 Habsheim
Tel.: +33 (0) 389441400
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E-Mail: [email protected]
Internet: www.AUDIOropa.com
Sarabec Ltd
15 High Force Road
GB-TS2 1RH Middlesbrough
Tel.: +44 (0)1642 247789
Fax: +44 (0)1642 230827
[email protected]
Internet: www.sarabec.com
All rights reserved regarding technical changes and changes to the programme structure. Printed in Germany. Version 01/2017
HUMANTECHNIK GmbH
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