Gentner TX-37A
AC Powered Transmitter [model 910-402-010]


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List Price: $701.00
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The TX-37A Transmitter from Gentner is the core of Gentner Assistive Listening Systems. It utilizes leveling multiband compression, peak limiting, and the patented Aphex Aural Exciter® for processing audio to provide maximum intelligibility and loudness. While other assistive listening transmitters simply increase volume, Gentner's TX-37A actually delivers enhanced sound quality for increased audio clarity at higher audio levels, and also eliminates the potential for clipping and overmodulation.

The unit can be set to 37 different frequencies, letting you use multiple transmitters in a single location while reducing the potential for audio interference—especially useful for education and simultaneous translation applications. Its universal input stage can accept audio from mic, line, or speaker levels, offering exceptional audio quality at all levels. Connection is made to the existing audio system using a tape or mixer auxiliary output.

It's designed with a compact, steel, 1/2 rack unit shielded chassis which helps protect it from damage and keeps out hum as well as other system noise and interference. A rack mount kit is available (sold separately) to install the transmitter in a standard 1U rack space.


  • Theatrical productions, such as the opera, ballet, symphony, and plays
  • Concerts in auditoriums or stadiums
  • Lectures in convention centers
  • Outdoor, sporting events
  • Church services

Gentner TX-37A Features and Benefits:

  • Only transmitter to combine multiband compression, automatic gain control, and peak limiting so there is no clipping or overmodulation
  • Superior overall sound quality, and dynamics control
  • Transmits to an area of more than 700,000 square feet, so the TX-37A is low cost for large venues
  • Easily connects to any source—universal input stage provides input for mic, line, or speaker level, balanced or unbalanced
  • Field selectable channels (37) with digital tuning for lower risk of interference
  • Onboard test tone aid for quick and easy receiver tuning
  • Supplied with flex antenna, remote mount, and 50ft RG174 type cable
  • Audio input level meter for visible indication of audio input and levels
  • Adjustable RF level allows control of RF coverage
  • Rugged steel chassis for enhanced RF quality
  • Audio monitor jack with volume control
  • Aphex® processing for increased intelligibility
  • Wide area FM system works outdoors in bright light, no line of sight restrictions

Gentner TX-37A Specifications:

  • Manufacturer #: 910-402-010
  • Physical:
    • Dimensions: 8.25" L x 7.25" D x 1.75" H (20.96 x 18.42 x 4.5cm)
    • Weight:
      • 2.5 lb/1.13 kg (dry)
      • 5.4 lb/2.46 kg (shipping)
  • Audio Inputs:
    • Mic: 600 Ohms balanced, 10mV
    • Line: 600 Ohms balanced, 1V
    • Line: 10k Ohms unbalanced, 1V
  • Speaker: unbalanced
  • Automatic Gain Control Range: 40dB
  • Manual Input Level Control: 20dB
  • Signal to Noise Ratio: 60dB
  • Transmission Type: FM modulation
  • Maximum Deviation: ±25 kHz, 50 kHz total
  • Maximum Radiated Power: 8000uV/m at 30M
  • RF Level Adjust: 1/4, 1/2, and full power
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Rack-Mount KitGentner 910-402-202 Rack-Mount Kit

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Tweaking ToolGentner 460-402-013 Tweaking Tool

This plastic tool is ideal for fine tuning receivers.

Call for price! Not available online.

Antenna Kit (for TX37A Receiver)Gentner 910-200-021 Antenna Kit (for TX37A Receiver)

Antenna assembly for TX-37A (Antenna, plate, and cable).

Usually ships in 7-14 business days.
Need it sooner? Call us!

Our Price:$64.05List Price: $87.00You save 26%!

ALS PlaqueGentner 460-402-001 ALS Plaque

The ADA Requirement Plaque displays the availability of Gentner Assistive Listening Systems and can easily be mounted for people to see. (6" W x 4" H)

Usually ships in 7-14 business days.
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Our Price:$15.95List Price: $20.00You save 20%!

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