Inductive sound systems

Active loop amplifier LA-40

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
  • 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 175,61 excl. VAT: € 147.57 / $ 159.38

Induction loop NL-90

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 32,34 excl. VAT: € 27.18 / $ 29.35