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Audio Technica BP4029

The Audio Technica BP4029 is a Stereo Shotgun Microphone. It has a switch selection of non-matrixed M-S mode and two internally-matrixed left/right stereo modes.

Based on models originally developed for use in the broadcast of the Sydney Olympics in 2000, the BP4027 (14.96" long) and BP4029 (9.29" long) Stereo Shotgun models are engineered for high-end broadcast and production use. Both microphones feature independent line-cardioid and figure-of-eight elements configured in an MS (Mid-Side) arrangement with switch-selectable internal matrixing. These innovative microphones allow sound recordists the choice of selecting a left-right stereo output (wide or narrow) via the microphone's internal matrixing system or choosing discreet Mid-Side signals for later manipulation, a flexibility not available from any other manufacturer.

A switchable low frequency roll-off filter helps minimize the pickup of unwanted low frequency noise. These phantom-powered models feature a rugged lightweight design and sleek black color scheme, perfect for on-camera use.
  • Designed for broadcasters, videographers and sound recordists
  • Compact, lightweight design is perfect for camera-mount use
  • Independent Line-cardioid and Figure-of-eight condenser elements
  • Switchable low-frequency roll-off
  • Switch selection of non-matrixed M-S mode and two internally-matrixed left/right stereo modes
  • Includes a 0.61 m (24") cable (5-pin XLRF to two standard 3-pin XLRM connectors)
  • RoHS compliant-free from all substances specified in the EU directive on hazardous substances
  • Specifications
  • ELEMENTS: Fixed-charge back plate, permanently polarized condenser
  • POLAR PATTERNS: Line-cardioid, Figure-of-eight
  • FREQUENCY RESPONSE: 40-20,000 Hz
  • LOW FREQUENCY ROLL-OFF: 80 Hz, 12 dB/octave
  • OPEN CIRCUIT SENSITIVITY: Mid: -30 dB (31.6 mV) re 1V at 1 Pa; Side: -34 dB (19.9 mV) re 1V at 1 Pa; LR Stereo: -36 dB (15.8 mV) re 1V at 1 Pa
  • IMPEDANCE: 200 ohms
  • MAXIMUM INPUT SOUND LEVEL Mid: 123 dB SPL, 1 kHz at 1% T.H.D.; Side: 127 dB SPL, 1 kHz at 1% T.H.D.; LR Stereo: 126 dB SPL, 1 kHz at 1% T.H.D.
  • DYNAMIC RANGE (typical): Mid: 101 dB, 1 kHz at Max SPL; Side: 101 dB, 1 kHz at Max SPL;
  • LR Stereo: 102 dB, 1 kHz at Max SPL
  • SIGNAL-TO-NOISE RATIO: Mid: 72 dB SPL, 1 kHz at 1 Pa; Side: 68 dB SPL, 1 kHz at 1 Pa;
  • LR Stereo: 70 dB SPL, 1 kHz at 1 Pa
  • PHANTOM POWER REQUIREMENTS: 11-52V DC, 4 mA typical at 48V, each channel
  • SWITCHES: M-S, LR Stereo-Wide (LR-W), LR Stereo-Narrow (LR-N); Flat, roll-off
  • WEIGHT: 103 g (3.6 oz)
  • DIMENSIONS: 236.0 mm (9.29") long, 21.0 mm (0.83") diameter
  • OUTPUT CONNECTOR: Integral XLR5M-type
  • CABLE: Dual 0.61 m (24") shielded two-conductor, terminated in two XLR3M-type connectors
  • ACCESSORIES FURNISHED: AT8405a stand clamp for 5/8"-27 threaded stands; AT8134 foam windscreen; 5/8"-27 to 3/8"-16 threaded adapter; protective carrying case
  • Reviews
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    Additional information
    For more information about the BP4029, please visit the website of Audio Technica
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