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
    Package Dimensions:2 x 2 x 4 in.
    Shipping Weight:0.26 lbs.
    WEEE weight:0.205 lbs.
    Tariff code:8543.70.9860

    Related Products

    • EZ-MX4L

      Stereo Line-Level Audio Mixer - 4X1

    • EZ-MX4ML

      Mic and Stereo Line Audio Mixer - 4X1

    • FP-MX3R

      Remote Controlled Line-Level Mixer

    • FP-MX4

      4 Channel Audio Mixer - Microphone or line input and output

    • FP-TPX3A

      Format-A Twisted Pair Remote Controlled Mixer

    • RU-MX4

      Professional 4 Channel Microphone/Line Mixer with Phantom Power - Microphone and line output

    • RU-MX4L

      Professional 4 Channel Line Level Mixer - Microphone and line Output

    • RU-MX4LT

      Professional 4 Channel Line Level Mixer with Transformer - Microphone and line output

    • RU-MX4T

      Professional 4 Channel Microphone/Line Mixer with Phantom Power & Transformer - Microphone and line output

    • RU-MX5ML

      5 Channel Mic/Line Audio Mixer with Phantom Power

    • ST-MX2

      2 Channel Audio Mixer - Microphone or line input and output

    • ST-MX3

      3 Channel Audio Mixer - Line input and output

    • ST-UMX3

      3x1 Universal Audio Mixer - 3 microphone or line inputs x 1 microphone or line output

    • TX-LC2

      Unbalanced to Balanced Line Combiner

    Format-A® Mixers
    • FP-TPX3A

      Format-A Twisted Pair Remote Controlled Mixer

    Transformer Products
    • TX-J2

      Unbalanced Input Transformer - Unbalanced stereo inputs to summed balanced mono output

    Related Products

    Pole Mounting Accessories
    TX™ Mounting Accessories
    • TX-HRA3

      10.4" Rack Mount for 3 TX Series Products

    • TX-RRB1

      Rear rack rail mounting kit for any TX series module

    • TX-RA5

      TX Series 19" Racking System - 5 modules 1RU

    • MB-1

      Mounting Kit - RU, ST and TX Series

    • DRA-35T

      TX Series DIN Rail Adapter

    General Mounting Accessories
    • MB-2

      Mounting Kit - RU and TX Series

    • SR-4

      STICK-ON Series Mounting Rack - 7 modules

    • MB-1

      Mounting Kit - RU, ST and TX Series

    • MB-3

      Kit to Mount ST, TX Series Modules on FP Panel

    DIN Rail Mounting Accessories




    CAD FilesUnitsSizeFormat
    Engineering Functional BlockAmerican3.95 KBDXF
    Panel Diagram - FrontAmerican5.83 KBDXF
    Panel Diagram - FrontMetric10.38 KBDXF
    High Res ImagesFormat
    Declaration of Conformity

    How To Buy

    Direct Dealer Program

    Becoming an RDL direct dealer is quick and easy. To become a direct dealer, your company must meet the following requirements:

    • Must be an A/V contractor, sound contractor or system integrator
    • Must possess a current resale certificate for your state
    Click here to submit a new direct dealer account inquiry

    Buy Online