Audio-Technica Menu


UniMute® Mic Attenuator with User-definable Switch Function

U.S. Two-Year Limited End-User Warranty

*Manufacturer's Suggested Retail Price. Actual selling price may vary; please check with an authorized Audio-Technica dealer.

  • Overview
  • Features
  • Specifications
  • Downloads

  • Overview

    The AT8684 is a versatile attenuator that permits easy in-line switch installation and flexible application. Type of external single-pole switch the user supplies determines muting function; closed contact causes muting. Use for on/off, push-to-talk, push-to-mute, etc. (Additional, isolated poles on the switch may be used to control logic-level DC circuits.)
  • Features

    • Professional XLR-type input/output connectors

    • Can be installed anywhere in-line, either at the mixer input or near the microphone

    • 24-48V DC phantom power and balanced cables required for operation

    • Permits phantom voltage to pass on to the microphone

    • Rugged steel housing

  • Specifications

    Input/Output Connectors XLRF/XLRM-type
    Phantom Power 24-48V DC, 2-4 mA typical
    Frequency Response 20-20,000 Hz
    Gain Unity (0 dB), +0/-1.5 dB
    Noise (A-Weighted) -115 dBV typical
    Weight 8.8 oz (250 g) typical
    Dimensions 5.12" (130.0 mm) W x
    2.36" (60.0 mm) D x
    1.73" (44.0 mm) H typical
    Input Impedance 5,300 ohms
    Output Impedance 500 ohms
    Maximum Input Level +17 dBV (1% T.H.D. at 1 kHz)
    Maximum Attenuation 57 dB at 1 kHz
    Notes UniMute® specifications measured at 48V phantom power, 150 ohms input load and 100,000 ohms output load.

  • Downloads

    AT8681, AT8684 Specification Sheet (pdf 67.22 KB)
    AT8684 Submittal Sheet (pdf 134.75 KB)
  • Reviews

  • Q & A