Description
The BP4027 is a fixed-charge stereo condenser microphone with independent line-cardioid and figure-of-eight elements configured in a Mid-Side arrangement with switch-selectable internal matrixing. The microphone allows sound recordists the choice of selecting a left-right stereo output (wide or narrow) via the microphone’s internal matrixing system or choosing discrete Mid-Side signals for later manipulation. The microphone requires 11V to 52V phantom power for operation. The microphone includes a 0.61 m (24") dual output cable terminating in a 5-pin XLRF-type to two standard 3-pin XLRM-type connectors. The output of the microphone is a 5-pin XLRM-type connector. A switch permits choice of flat response or low-frequency roll-off (via integral 80 Hz high-pass filter) to help control undesired ambient noise.
The microphone is enclosed in a rugged housing. The included AT8405a stand clamp permits mounting on any microphone stand with 5/8"-27 threads. A windscreen, two o-rings and a protective carrying case are also included.
Features
- Innovative stereo shotgun engineered for professional broadcast and production applications
- Independent line-cardioid and figure-of-eight condenser elements
- Switch selection of non-matrixed M-S mode and two internally matrixed left/right stereo modes
- Rugged design and construction for reliable performance
- Switchable 80 Hz high-pass filter minimizes pickup of undesired low-frequency sounds
Specifications
POLAR PATTERNS Line-cardioid, Figure-of-eight
FREQUENCY RESPONSE 30-20,000 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 142 g (5.0 oz)
DIMENSIONS 380.0 mm (14.96") 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; AT8135 foam windscreen; 5/8"-27 to 3/8"-16 threaded adapter; protective carrying case
AUDIO-TECHNICA CASE STYLE SG3
