Inductive sound systems

Active loop amplifier LA-200

Enlarge Active loop amplifier, in constant current technology with dynamic compressor for setting up an inductive sound reproduction system in rooms up to 200 m2. The inductive transmission of audio signals allows users of hearing aids with a T-coil or inductive receivers, e.g. the LR-200, to receive audio signals. The wireless transmission is an advantage of inductive sound reproduction systems which makes it possible for the user to move freely within the loop. Inductive sound reproduction systems are used for various applications, e.g. as a hearing aid for the hearing impaired in churches, theatres, cinemas, waiting rooms and lounges, as interpreting systems, for lectures in museums, exhibitions, etc. With inductive sound reproduction systems, an inductive loop made of a wire winding is laid on the floor, the wall or along the ceiling and is controlled by a constant current amplifier. Thus, a magnetic field is created within the loop which induces a voltage into the T-coil of the hearing aid or into the inductive receiver. In the receivers, this voltage is then converted again into an audio signal.
  • Dynamic compressor
  • Automatic talkover
  • Metal loss correction 0-(+3) dB/oct.
  • Phantom power can be switched on additionally
  • 482 mm (19") rack installation with supplied mounting brackets

Specifications:

  • Loop current: 7 APEAK
  • Loop resistance: 0.2-2 Ω
  • Room size: up to 200 m2
  • Inputs:
  • Mic/line: mic 1.6 mV/2.6 kΩ, combo, bal. switchable to line 630 mV/6.5 kΩ, combo, bal. line 630 mV/9 kΩ, RCA, unbal. alarm: 2 screw terminals for connecting a switch
  • Outputs: loop: 2 screw terminals
  • Equalizer:
  • Bass: ±8 dB, 100 Hz
  • Treble: ±10 dB, 10 kHz
  • Frequency range: 50-7,500 Hz, ±3 dB
  • THD: 1 %
  • Admiss. ambient temp.: 0-40 °C
  • Power supply: 230 V /50 Hz/150 VA
  • Dimensions: 482x88x280 mm, 2 RS
  • Weight: 8 kg

Price per unit   (Order No mo-172110) EUR 310,00 excl. VAT: € 260.50 / $ 304.79
 


Active loop amplifier LA-40

Enlarge Active loop amplifier, with dynamic compressor, specifically for setting up an inductive sound reproduction system in domestic locations. The loop amplifier LA-40 transmits the audio signals from a TV, audio system and/or microphone to the induction loop which is laid on the floor, the wall or along the ceiling. Thus, a magnetic field is created within the loop which is received by the T-coil of the hearing aid or the inductive receiver and is then converted again into an audio signal. The wireless transmission is an advantage of inductive sound reproduction systems. It makes it possible for the user to move freely within the loop and to adjust the volume of the hearing aid or receiving unit (LR-200) as desired, without disturbing the other occupants. The LA-40 can be connected directly to the SCART jack of a TV (via supplied SCART adapter) or to an audio system. Talks of the other occupants can be heard via the connection of a microphone which is available at option. The integrated signal generator of the LA-40 allows to create an alarm signal via an optional switch.
  • Supplied with 35 m loop wire for setting up an induction loop, SCART adapter, PSU
  • Integrated alarm signal can be switched on additionally
  • Dynamic compressor
  • Adjustable input sensitivity for line and microphone
  • 2-way tone control
  • Adjustable loop current
  • LEDs for indicating power, signal/PEAK and loop current
  • Headphone connection on the front panel
  • Built-in phantom power for electret microphones
  • Recommended microphone: ECM-300LA

Specifications:

  • Loop current: 2.8 APEAK
  • Loop resistance: 0.4-2 Ω
  • Room size: up to 40 m2
  • Inputs:
  • Mic/line: mic: 2 mV/660 Ω (phantom voltage: 7.2 V) 6.3 mm jack line: 48 mV/11 kΩ, 2 x RCA alarm: 2 terminals for connecting a switch
  • Outputs: loop: connection of the supplied loop via 2 terminals headphones: 32 Ω, 3.5 mm jack
  • Equalizer:
  • Bass: ±8 dB, 100 Hz
  • Treble: ±10 dB, 10 kHz
  • Frequency range: 75-7,500 Hz, ±3 dB
  • THD: 0.44 %
  • Admiss. ambient temp.: 0-40 °C
  • Power supply: via supplied PSU
  • Dimensions: 175x102x45 mm
  • Weight: 510 g

Price per unit   (Order No mo-172330) EUR 124,00 excl. VAT: € 104.20 / $ 121.92
 


Active loop amplifier LA-400

Enlarge Active loop amplifier, in constant current technology with dynamic compressor for setting up an inductive sound reproduction system in rooms up to 400 m2. The inductive transmission of audio signals allows users of hearing aids with a T-coil or inductive receivers, e.g. the LR-200, to receive audio signals. The wireless transmission is an advantage of inductive sound reproduction systems which makes it possible for the user to move freely within the loop. Inductive sound reproduction systems are used for various applications, e.g. as a hearing aid for the hearing impaired in churches, theatres, cinemas, waiting rooms and lounges, as interpreting systems, for lectures in museums, exhibitions, etc. With inductive sound reproduction systems, an inductive loop made of a wire winding is laid on the floor, the wall or along the ceiling and is controlled by a constant current amplifier. Thus, a magnetic field is created within the loop which induces a voltage into the T-coil of the hearing aid or into the inductive receiver. In the receivers, this voltage is then converted again into an audio signal.
  • Dynamic compressor
  • Automatic talkover
  • Metal loss correction 0-(+3) dB/oct.
  • Phantom power can be switched on additionally
  • 482 mm (19") rack installation with supplied mounting brackets

Specifications:

  • Loop current: 10 APEAK
  • Loop resistance: 0.2-2 Ω
  • Room size: up to 400 m2
  • Inputs:
  • Mic/line: mic 1.6 mV/2.6 kΩ, combo, bal. switchable to line 630 mV/6.5 kΩ, combo, bal. line 630 mV/9 kΩ, RCA, unbal. alarm: 2 screw terminals for connecting a switch
  • Outputs: loop: 2 screw terminals
  • Equalizer:
  • Bass: ±8 dB, 100 Hz
  • Treble: ±10 dB, 6 kHz
  • Frequency range: 50-7,500 Hz, ±3 dB
  • THD: 1 %
  • Admiss. ambient temp.: 0-40 °C
  • Power supply: 230 V /50 Hz/250 VA
  • Dimensions: 482x88x280 mm, 2 RS
  • Weight: 9 kg

Price per unit   (Order No mo-173790) EUR 425,00 excl. VAT: € 357.14 / $ 417.86
 


Inductive receiver LR-200

Enlarge Inductive receiver, for receiving audio signals in inductive sound reproduction systems. The electromagnetic field which is created by an induction loop is received by the inductive receiver and converted into an audio signal. Any number of receivers can be operated within one induction loop. The unit is suitable for people with and without hearing problems and can be used for various applications: Hearing aid for the hearing impaired Operational test of inductive sound reproduction systems Detection of stray radiation within a loop Interpretation systems Lectures in museums, at exhibitions, etc.
  • 3.5 mm mono connection for headphones 32 Ω
  • Volume control
  • Low cut switch
  • Belt clip
  • Power supply via 9 V battery
  • Dimensions: 63x100x29 mm
  • Weight: 100 g

 

Price per unit   (Order No mo-172120) - not available
 


Induction loop NL-90

Enlarge Induction loop, for wireless transmission of audio signals to hearing aids via optional pocket transmitter.
  • Comfortable to wear around the neck (loop diameter: approx. 26 cm)
  • Matching the pocket transmitters ATS-10R, ATS-16R, ATS-40R, TXA-800R
  • 3.5 mm stereo jack connection

 

Price per unit   (Order No mo-173090) EUR 26,00 excl. VAT: € 21.85 / $ 25.56