RDL®

STM-2X

Switched Microphone Preamplifier - 35 to 65 dB Gain

SKU: STM-2X
  • Quiet Switching of Condenser Microphone
  • Remote Microphone Soft-Switching
  • Switch a Mic-Level Source to a Mic or Line Level Output
  • Remote Toggle Switch or Push-to-Talk Button
  • Adjustable Preset Gain on Microphone Source
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)

    Description

    The STM-2X is the ideal choice in many installations where a microphone preamplifier is required, and is the ideal choice where either a toggle-type switch or push-to-talk switch is to be provided for microphone control, particularly if condenser microphones are used.

    Specifications

    Input:500 Ω balanced; 5 kΩ unbalanced
    Phantom:24 Vdc; IEC 61938: 2013, Filtered
    Outputs (2):Line Level: +4 dBu 150Ω balanced
    Mic Level: -45 dBu 150Ω balanced
    Headroom:> 20 dB
    Gain:Line: Adjustable 35 to 65 dB; Mic Level Output: Adjustable -15 to 15 dB
    Dimensions:Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
    Frequency Response:50 Hz to 30 kHz (± 1.5 dB)
    THD+N:< 0.05% (50 dB gain)
    Residual Noise ON:< -70 dB (below to +4 dBu; 150 Ω source @ 50 dB gain)
    OFF Attenuation:> 100 dB (1 kHz)
    > 80 dB (50 Hz to 20 kHz)
    Switch Control Input:Connect to ground to activate signal; 0.5 mA maximum current required
    Switching Time:< 5 ms (soft-switching transition on or off)
    CMRR:>50 dB (50 Hz to 20 kHz)
    Phantom Power Input:24 Vdc @ 10 mA maximum
    Ambient Operating Environment:0° C to 55° C
    Power Requirement:GROUND-REFERENCED, 24 Vdc @ 25 mA
    Package Type:Cardboard Box
    WEEE weight:0.145 lbs.
    Shipping Weight:0.195 lbs.
    Tariff code:8543.70.9860
    Package Dimensions:2 x 2 x 4 in.

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    Dimensions

    STM-2X

    Downloads

    DocumentsFormat
    DatasheetPDF
    CAD FilesUnitsFormat
    Engineering Functional BlockAmericanDXF
    Panel Diagram - EndAmericanDXF
    Panel Diagram - FrontAmericanDXF
    Panel Diagram - EndMetricDXF
    Panel Diagram - FrontMetricDXF
    High Res ImagesFormat
    stm-2x.zipTIF
    Declaration of Conformity
    Download

    Diagrams

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