Henry Engineering TWINMATCH-HD
Dual Stereo Level and Impedance Interface


The TwinMatch is a dual-stereo (4-channel) level and impedance converter that interfaces two "consumer" stereo outputs with professional balanced equipment.  It is ideal for use with a pair of stereo CD players or other "play only" sources.  The unit accepts four channel (2 stereo pairs) of -10 dBv unbalanced audio and converts to professional "600 ohm" balanced lines.  The gain is adjustable to accommodate either +4 or +8 dBm systems.

All circuity is direct-coupled and transformerless for sonic transparency, making TwinMatch ideal for digital sources.  Unbalanced inputs are on gold-plated RCA jacks; balanced outputs are via XLR connectors. 

The TwinMatch has a 1/3 rack width and can be mounted in an optional rack shelf, or wall mounted with optional wall/cabinet mounting brackets.  It is powered by an internal AC power supply.

Technical Specifications:

  • Input Level: -10 dBv nominal
  • Input Impedance: 25k ohms, unbal
  • Output Level: +4 to +8 dBm nominal, +26 dBm max
  • Output Load: 600 ohms or higher, balanced
  • Controls: Output level for each channel
  • Gain: +6 to +20 dB, adjustable
  • Frequency Response: DC to 20kHz, +0.25dB
  • Distortion: <0.01% IM/THD
  • Noise: >80dB below nominal output, typ.
  • Power Requirements: 115/230VACm 50/60Hz, 3W
  • Construction: Streel enclosure
  • Physical: 5.7 (w) x 1.7 (h) x 6.0 (d) inches
  • Mounting: table top, optional rack mount shelf, optional wall/cabinet mounting brackets


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