BP894
Discontinued
Subminiature Cardioid Condenser Headworn Microphone

BP894

BP894
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Overview

BP894

The BP894 has been updated. See the BP894x for the latest model.

Audio-Technica's innovative BP894 MicroSet® offers the ultimate in low-profile, high-performance audio. The BP894 features a rotating capsule housing with talk-side indicator for use on either ear and perfect polar pattern placement. The MicroSet BP894 takes headworn microphones to the next level, by allowing the cardioid capsule to be aimed directly at the sound source. The uniform pickup pattern provides excellent rejection of outside noise, with exceptional gain-before-feedback when used with live sound systems and stage monitors. Delivering clear and accurate sound in an inconspicuous package, the ultra-lightweight BP894 hooks securely behind either ear and can be worn for hours witout fatigue. For maximum stability and comfort, the included AT8464 dual-ear microphone mount converts the MicroSet to a dual-ear-worn unit.

Features

  • Features a rotating capsule housing with talk-side indicator for use on either ear and perfect polar pattern placement
  • Provides superior intelligibility and clean, accurate reproduction for the most demanding house of worship user, lecturer, broadcaster or theater performer
  • Handles high sound pressure levels with ease
  • Extremely intelligible natural audio
  • Inconspicuous, lightweight headset with capsule diameter of just 2.8 mm is ideal for applications requiring minimum visibility
  • Ergonomic under-ear design—flexible, lightweight contoured loop hooks behind the ear for an ultra-secure, comfortable fit with or without glasses
  • Comes equipped with AT8464 Dual-Ear Microphone Mount that converts single ear-worn MicroSet to a dual-ear-worn unit for maximum stability and comfort
  • High-pass filter on power module provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
  • Available in black and beige, wired and wireless models: BP894 – includes AT8539 power module BP894-TH – same as BP894, but in "theater" color (beige) BP894c – less power module; 55" (1.4 m) cable, unterminated BP894c-TH – same as BP894c, but in "theater" color (beige) BP894cH – less power module; 55" (1.4 m) cable terminated with a screw-down 4-pin connector for use with Audio-Technica wireless systems featuring cH-style connector BP894cH-TH – same as BP894cH, but in "theater" color (beige) BP894cW – less power module; 55" (1.4 m) cable terminated with a locking 4-pin connector for use with Audio-Technica wireless systems featuring cW-style connector BP894cW-TH – same as BP894cW, but in "theater" color (beige) BP894cL4 – less power module; 55" (1.4 m) cable terminated for Sennheiser wireless systems using Lemo connector BP894cL4-TH – same as BP894cL4, but in "theater" color (beige) BP894cLM3 – less power module; 55" (1.4 m) cable terminated for Sennheiser wireless systems using locking 3.5 mm connector BP894cLM3-TH – same as BP894cLM3, but in "theater" color (beige) BP894cT4 – less power module; 55" (1.4 m) cable terminated with TA4F-type connector for Shure wireless systems BP894cT4-TH – same as BP894cT4, but in "theater" color (beige)

Specifications

Microphones
Element Fixed-charge back plate, permanently polarized condenser
Polar Pattern Cardioid
Frequency Response 20-20,000 Hz
Low Frequency Roll Off 80 Hz, 18 dB/octave (wired only)
Open Circuit Sensitivity -49 dB (3.5 mV) re 1V at 1 Pa
Maximum Input Sound Level 135 dB SPL, 1 kHz at 3% T.H.D.
Dynamic Range 104 dB, 1 kHz at Max SPL (wired only)
Signal-to-Noise Ratio 63 dB, 1 kHz at 1 Pa
Phantom Power Requirements 11-52V DC, 2 mA typical (wired only)
Switches Flat, roll-off (wired only)
Current Consumption 0.1 mA typical at 5V (wireless only)
Voltage Range 2.5-11V (wireless only)
Weight (Microphone) Microphone, boom & earpiece: 2.0 g (0.07 oz)
Weight (Power Module) 85 g (3.0 oz) (wired only)
Cable 1.4 m (55") long (permanently attached to microphone), 1.6 mm (0.06") diameter, 2-conductor shielded cable with locking 4-pin connector (wired only)
Dimensions Microphone: 6.5 mm (0.26") long, 2.8 mm (0.11") diameter Boom: 107.4 mm (4.23") long, 1.09 mm (0.04") diameter
Dimensions (Power Module) 97.6 mm (3.84") long, 18.9 mm (0.74") diameter (wired only)
Output Connector (Power Module) Integral 3-pin XLRM-type

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BP894 Submittal Sheet