Intercom Amplifier

  • Intercom Electronics
  • Intercom with Push-to-Talk
  • Mic or Speaker Input
  • 8 Ω or 45 Ω Speakers
  • Bidirectional Communication Option
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)


    The ST-IC1 is the ideal choice where an intercom system is to be installed, or where an amplifier is needed to bring a mic level up to a 1 W speaker level with optional muting capability.

    The ST-IC1 has one input, one output and two muting control terminals.

    The input accepts a dynamic mic, a condenser mic (a phantom supply input terminal is provided to power condenser mics), an 8 Ω speaker or a 45 Ω speaker. The gain range of the module is sufficient to accommodate this wide variety of source levels.

    The output is ground-referenced, and drives more than 1 watt RMS into an 8 Ω load. The output circuit can be connected to any load impedance of 4 Ω or greater.


    Input:>600 Ω balanced
    Frequency Response:300 Hz to 4 kHz (± 2 dB, filtered for voice band intelligibility)
    Gain:Off to 70 dB (adjustable)
    Input level for 1 W RMS output:-60 dBu (8 Ω source); -55 dBu (600 Ω source)
    THD+N:< 1% (1 kHz, referred to 1 W @ 50 dB gain)
    Residual Noise (below 1 W): 115 dB (1 kHz)
    Mute Switching Type:Solid-State, no relay contacts used
    Mute Release Delay:15 ms
    Ambient Operating Environment:0° C to 40° C
    Power Requirement:GROUND-REFERENCED, 24 Vdc @ 175 mA
    Dimensions:Height: 0.7 in. (7.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
    Package Type:Cardboard Box
    Package Dimensions:2 x 2 x 4 in.
    Shipping Weight:0.185 lbs.
    WEEE weight:0.13 lbs.
    Tariff code:8543.70.9860

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    CAD FilesUnitsSizeFormat
    Engineering Functional BlockAmerican3.99 KBDXF
    Panel Diagram - EndAmerican3.14 KBDXF
    Panel Diagram - FrontAmerican58.54 KBDXF
    Panel Diagram - EndMetric3.09 KBDXF
    Panel Diagram - FrontMetric60.15 KBDXF
    High Res ImagesFormat
    Declaration of Conformity


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