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BP894x-TH MicroSet®

Cardioid Condenser Headworn Microphone


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
  • Reviews
  • Q & A

  • Overview


    Audio-Technica’s innovative BP894x-TH MicroSet® offers the ultimate in low-profile, high-performance audio. The ultra-lightweight microphone hooks securely behind either ear and features a rotating capsule housing with talk-side indicator for perfect polar pattern placement. With its capacity for aiming the cardioid condenser capsule directly at the sound source, the microphone provides excellent rejection of outside noise, with exceptional gain-before-feedback when used with live sound systems and stage monitors.

    The BP894x-TH MicroSet’s subminiature cardioid condenser capsule delivers extremely intelligible, natural audio with a flat, extended frequency response that is ideal for stage and television talent, lecturers, and worship leaders. Engineered to stand up to the rigors of day-to-day use, the BP894x-TH includes a detachable, field-replaceable cable with a robust connector at the earset and a variety of available output terminations.
  • Features


    • Features a rotating capsule housing with talk-side indicator for perfect polar pattern placement from either ear

    • Subminiature cardioid condenser capsule offers extremely intelligible, natural vocal reproduction

    • Inconspicuous, lightweight headset with capsule diameter of just 2.6 mm is ideal for applications requiring minimum visibility

    • Ergonomic under-ear design – the flexible, lightweight, contoured loop hooks behind the ear for an ultra-secure, comfortable fit even for those wearing glasses

    • Detachable, field-replaceable cable with robust connector at the earset and a variety of available terminations

    • Handles high sound pressure levels with ease

    • Wired version’s power module (AT8545) includes a high-pass filter that provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality

    • Comes with the AT8464x-TH Dual-Ear Adapter Kit that converts the single-ear MicroSet to a unit that’s worn on both ears for maximum stability and comfort

    • Constructed of hypoallergenic materials

    • Available in black and beige, wired and wireless models:
      BP894x – includes AT8545 power module
      BP894x-TH – same as BP894x, but in "theater" color (beige)
      BP894xcH – less power module; 55" (1.4 m) detachable cable terminated with a screw-down 4-pin connector for use with Audio-Technica wireless systems featuring cH-style connector
      BP894xcH-TH – same as BP894xcH, but in "theater" color (beige)
      BP894xcW – less power module; 55" (1.4 m) detachable cable terminated with a locking 4-pin connector for use with Audio-Technica wireless systems featuring cW-style connector
      BP894xcW-TH – same as BP894xcW, but in "theater" color (beige)
      BP894xcLM3 – less power module; 55" (1.4 m) detachable cable terminated for Sennheiser wireless systems using locking 3.5 mm connector
      BP894xcLM3-TH – same as BP894xcLM3, but in "theater" color (beige)
      BP894xcT4 – less power module; 55" (1.4 m) detachable cable terminated with TA4F-type connector for Shure wireless systems
      BP894xcT4-TH – same as BP894xcT4, but in "theater" color (beige)

  • Specifications

    ELEMENTFixed-charge back plate, permanently polarized condenser
    POLAR PATTERNCardioid
    FREQUENCY RESPONSE20-20,000 Hz
    LOW FREQUENCY ROLL-OFF80 Hz, 18 dB/octave (wired only)
    OPEN CIRCUIT SENSITIVITY-47 dB (4.3 mV) re 1V at 1 Pa
    IMPEDANCE250 ohms (wired only)
    MAXIMUM INPUT SOUND LEVEL135 dB SPL, 1 kHz at 3% T.H.D.
    DYNAMIC RANGE (typical)98 dB, 1 kHz at Max SPL (wired only)
    SIGNAL-TO-NOISE RATIO57 dB, 1 kHz at 1 Pa
    PHANTOM POWER REQUIREMENTS11-52V DC, 2 mA typical (wired only)
    SWITCHFlat, roll-off (wired only)
    CURRENT CONSUMPTION0.25 mA typical at 5V (wireless only)
    VOLTAGE RANGE3.5-10V (wireless only)
    WEIGHT (MICROPHONE)Microphone, boom & earpiece: 2.0 g (0.07 oz)
    WEIGHT (POWER MODULE)85 g (3.0 oz) (wired only)
    DIMENSIONSMicrophone: 9.67 mm (0.38") long, 2.6 mm (0.10") diameter
    Boom: 98.4 mm (3.87") long, 1.07 mm (0.04") diameter
    DIMENSIONS (POWER MODULE)100.0 mm (3.94") long, 18.9 mm (0.74") diameter (wired only)
    OUTPUT CONNECTOR (POWER MODULE)Integral 3-pin XLRM-type
    CABLEDetachable 1.4 m (55") long, 1.6 mm (0.06") diameter, 2- or 3-conductor shielded cable (termination dependent)
    ACCESSORIES FURNISHEDBP894x: AT8545 power module (wired only); AT8464x dual-ear adapter kit;
    AT8440 cable clip; AT8163 windscreen; AT8171 windscreen; moisture guard; belt clip (wired only); carrying case
    BP894x-TH: AT8545 power module (wired only); AT8464x-TH dual-ear adapter kit; AT8440 cable clip; AT8163-TH windscreen; AT8171-TH windscreen; moisture guard; belt clip (wired only); carrying case
    AUDIO-TECHNICA CASE STYLEM40



    Conditions
  • Downloads

    BP894X Specification Sheet (pdf 526.89 KB)
    Optional Windscreens / Mounts
  • Reviews

  • Q & A