Audio Mixer / Distribution Amplifier

  • Mix 2 unbalanced mono signals
  • Combine stereo into mono
  • Gain trim for each input
  • Two active isolated outputs from the input signal (s)
  • Isolation between inputs
  • High-Quality unbalanced audio
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)


    The TX-MX2R is the ideal choice in installations requiring the active, isolated mixing of two unbalanced line-level audio sources to feed either one or two unbalanced destinations.

    The input circuits are high-impedance, line-level (-10 dBV) and are each isolated from each other. Therefore the modules may be used to bridge an unbalanced stereo source without affecting the stereo separation. Each output from the TX-MX2R is a mono mix of the stereo signal. Normally, the gain trimmers are set to unity gain. If either channel is low, the gain of that channel may be adjusted up to 6 dB.

    The TX-MX2R may also be used to mix two separate sources into a single output. The mixing circuit in the module is an active summing amplifier.

    The output driver provides two separate, identical output signals from the input signal or signals. This output distribution amplifier therefore allows the TX-MX2R to be used as a two-output audio distribution amplifier. If it is desired to distribute a single source to two destinations, one of the inputs may be left unused without any loss of performance.


    Inputs (2):-10 dBV
    Input Impedance:10 kΩ
    Noise:< -75 dB (referenced to -10 dBV)
    THD+N:< 0.05% (0.01% typical)
    Frequency Response:25 Hz to 45 kHz (± 0.5 dB)
    15 Hz to 70 kHz (± 1 dB)
    Gain (per channel):Unity to +6 dB nominal (adjustable)
    IMD:0.01% typical
    Outputs (2):100 Ω unbalanced, -10 dBV to drive low or high impedance unbalanced lines
    Headroom:> 27 dB (24 Vdc supply)
    > 18 dB (12 Vdc supply)
    Ambient Operating Environment:0° C to 55° C
    Power Requirement:GROUND-REFERENCED, 12 to 33 Vdc @ 10 mA
    Package Type:Cardboard Box
    WEEE weight:0.205 lbs.
    Shipping Weight:0.26 lbs.
    Tariff code:8543.70.9860
    Package Dimensions:2 x 2 x 4 in.

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    CAD FilesUnitsFormat
    Engineering Functional BlockAmericanDXF
    Panel Diagram - FrontAmericanDXF
    Panel Diagram - FrontMetricDXF
    High Res ImagesFormat
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