MCM Electronics

RDL Line Level Mixing Amplifier By Radio Design Labs (ST-MX3) MCM Part #555-ST-MX3

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Line Level Mixing Amplifier

The ST-MX3 is a line-level mixer module in the STICK-ON Series of products. It provides audio mixing of three line-level inputs with individual input gain adjustments. The line-level output is capable of driving either high or low impedance, balanced or unbalanced loads. The ST-MX3 operates from ground-referenced floating or bipolar DC power.

  • For installations with microphone level inputs, use the ST-UMX3 Universal Audio Mixer.
  • Specifications Top

    • Mix Line-Level Signals
    • Three Individually Adjustable Inputs
    • Add Additional Line Level Inputs to an Existing Mixer
    • Combine Signals of Different Level, Impedance or Balanced /Unbalanced Configuration
    • Isolation Between Input Signals
    • Low-Noise and Low-Distortion Performance
    • RDL® SupplyFlex™ Power Input Configuration

    Inputs (3): 30 Kohm balanced or unbalanced bridging
    Input Level: -20 dBu to +18 dBu (for +4 dBu output)
    -24 dBu to +14 dBu (for 0 dBu output)
    Output: 400 ohm to drive low or high impedance balanced or unbalanced lines
    Output Level: +4 dBu nominal, (adjustable; unbalanced output 6 dB below balanced line level)
    THD+N: < 0.03% (10 Hz to 20 kHz)
    Frequency Response: 10 Hz to 20 kHz (± 0.5 dB)
    Noise : < -80 dB (all inputs @ 10 dB gain, referenced to +4 dBu)
    Headroom: 18 dB
    Gain (each input): -14 dB to +24 dB (adjustable)
    CMRR: > 50 dB (50 to 120 Hz)
    Ambient Operating Environment: 0° C to 55° C
    Power Requirement: GROUND-REFERENCED or FLOATING, 24 VDC @ 55 mA
    Package Dimensions: 2" x 2" x 4"
    Shipping Weight: 0.17 lbs.

    Part Numbers
    MCM Part #:555-ST-MX3
    Radio Design Labs Part #:ST-MX3
    Package Specifications & Dimensions
    Weight:0.23 lbs.
    Warranty:1095 days
    Need to Return?
    Length:4.25 in.
    Width:2.25 in.
    Height:2 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages
    MCM Cat 57, Page 149
    MCM Cat 56, Page 165
    View in Catalog

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