RDL®

ST-UMX3

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

SKU: ST-UMX3
  • Audio Mixing with Up To Three Inputs
  • Switch-Selectable Mic or Line Inputs
  • Switch-Selectable Mic or Line Output
  • Add Additional Microphone or Line Level Inputs to an Existing Mixer
  • Combine Signals of Different Level, Impedance, or Balanced /Unbalanced Configuration
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)
    Category:

    Description

    The ST-UMX3 is a three-channel audio mixer for combining mic-level or line-level signals to a single output. A MIC/LINE switch is provided for each input. A separate MIC/ LINE switch selects the output level. Each input features a separate preamplifier circuit, which isolates it from the other inputs. An audio taper single turn gain adjustment is provided for each of the three input preamps. Signals from the three preamps are actively summed and fed to the output amplifier which includes an RDL® dual-LED VU meter.

    Each input level is set while observing the LED output level meter. The dual-LED output meter follows standard VU ballistics. The intensity of the green LED progresses from minimum at -11 dBu to full intensity at +4 dBu.

    The flexibility of switching each input and the output between MIC or LINE allows installers to address a wide variety of mixing solutions with only one product type.

    Specifications

    Inputs (3):Mic: 600 Ω; Line: 50 kΩ, balanced
    NOTE: MIC INPUTS ON ST-UMX3 ARE NOT PROTECTED AGAINST PHANTOM VOLTAGE. USE THE ST-MPA24 or ST-MPA48 MIC PHANTOM ADAPTER.
    Maximum Input Signal:Mic: -18 dBu; Line: +25 dBu
    Gain (each input):Mic: Adjustable from OFF to 60 dB
    Line: Adjustable from OFF to 21 dB
    Output:150 Ω balanced; 75 Ω unbalanced
    Output Signal:Mic: 50 dB below line level
    Line: +4 dBu nominal
    THD+N:< 0.006%
    IMD:Mic (@ 50 dB gain): < 0.04%
    Line: < 0.008%
    Freq. Response:Mic: 50 Hz to 100 kHz (± 1 dB)
    Line: 10 Hz to 100 kHz (± 0.05 dB)
    Noise (each input):Mic: < -70 dB (50 dB gain)
    Line: 60 dB
    Line: > 50 dB, (50 to 120 Hz)
    Ambient Operating Environment:0° C to 55° C
    Power Requirement:GROUND-REFERENCED, 24 Vdc @ 55 mA
    Package Type:Cardboard Box
    Package Dimensions:2 x 2 x 4 in.
    Shipping Weight:0.175 lbs.
    WEEE weight:0.12 lbs.
    Tariff code:8543.70.9860

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    Dimensions

    ST-UMX3

    Downloads

    DocumentsFormat
    DatasheetPDF
    CAD FilesUnitsSizeFormat
    Engineering Functional BlockAmerican3.97 KBDXF
    Panel Diagram - EndAmerican11.9 KBDXF
    Panel Diagram - FrontAmerican70.88 KBDXF
    Panel Diagram - EndMetric11.95 KBDXF
    Panel Diagram - FrontMetric70.98 KBDXF
    High Res ImagesFormat
    st-umx3.zipTIF
    Declaration of Conformity
    Download

    Diagrams

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