Community TRC400
400W Line Transformer for 70/100/140V


The TRC400 is a 400 Watt line transformer used to step down the voltage and impedance of "constant voltage" audio distribution lines to the voltage level and impedance required by loudspeakers. It can also be used to step up the voltage of an amplifier to the voltage needed for a distribution line. The TRC400 has three output taps. The taps allow individual loudspeakers to be adjusted to operate at the same or different power levels compared to other loudspeakers in a system on the distribution line. The input taps on the TRC400 allow itto be used with 70V, 100V, and 140V distribution systems. The output taps of the TRC400 are designed to drive either 8 ohm or 4 ohm loudspeakers.

NOTE: Actual product may vary in appearance and specification. For more information on this and other products, please contact your Sales Pro. 

The TRC400 is manufactured from high quality materials Its high permeability iron core provides high power handling at low frequencies. The TRC400 has four mounting tabs that allow it to be bolted into back-boxes or other enclosures, to loudspeaker enclosures, or to loudspeaker mounting hardware. The stripped wire input and output leads can be easily connected to loudspeaker terminals and the distribution cable in a variety of ways including terminal strips, soldering, and wire-nuts.

Community TRC400 Specifications:

  • Type: Line transformer for constant voltage audio distribution lines
  • Inputs: (3) 70V, 100V, or 140V line
  • Maximum Inputs:
    • 70V RMS / 100V peak
    • 100V RMS / 140V peak
    • 140V RMS / 195V peak
  • Output Taps: (3): full power, 1/2 power, 1/4 power
  • Output Load: Nominal 4 or 8 Ohm
  • Frequency Response: 50 Hz - 16 kHz (+/- 1 dB)
  • Insertion loss: 1.1 dB
  • Turns Ratio:
    • 140V to 400W tap 7:2
    • 200W tap 5:1
    • 100W tap 7:1
    • 100V to 400W tap 5:2
    • 200W tap 7:2
    • 100W tap 5:1
    • 70V to 400W tap 7:4
    • 200W tap 5:2
    • 100W tap 7:2
  • Input & Output Connections: 7 in / 178 mm #18 AWG color coded wires with stripped ends
  • Construction: Open frame
  • Mounting Provisions: (4) mounting tabs each with a0.44 in. / 11 mm x 0.22 in. / 6 mm hole
  • Dimensions:
    • Height: 3.75 in. / 95 mm
    • Width: 4.5 in. / 114 mm
    • Depth: 3.75 in. / 95 mm
    • Weight: 8.9 lb. / 4.1 kg
  • Shipping Weight: 9.5 lb. / 4.3 kg
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