Description
The BP4027 (AT815ST) Stereo Shotgun Microphone from Audio-Technica is a direct result of input Audio Technica received from broadcasters over the last few years. After extensive testing of this microphone by television broadcast professionals, as well as at Olympic test events, this microphone became a favorite among broadcasters, sound recordists and videographers.
- 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
The Audio-Technica BP4027 is a stereo shotgun condenser microphone designed for professional broadcasting, field recording, and professional audio applications. Here are the full details:
Microphone Specifications:
- Element: Externally polarized (DC bias) condenser
- Polar Pattern: Mid-Side (MS) stereo (middle: line + gradient; side: figure-of-eight)
- Frequency Response: 20 Hz to 20 kHz
- 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
- Impedance: 200 ohms
- Maximum Input Sound Level:
- Mid: 128 dB SPL, 1 kHz at 1% T.H.D.
- Side: 130 dB SPL, 1 kHz at 1% T.H.D.
- Dynamic Range (Typical):
- Mid: 108 dB, 1 kHz at Max SPL
- Side: 106 dB, 1 kHz at Max SPL
- Signal-to-Noise Ratio (1 kHz at 1 Pa):
- Mid: 76 dB
- Side: 72 dB
- Phantom Power Requirements: 48V DC, 4.8 mA typical
- Switch: Flat, roll-off; MS width narrow, MS width wide
- Weight: 144 g (5.1 oz)
- Dimensions:
- Length: 407.0 mm (16.02″)
- Diameter: 21.0 mm (0.83″)
- Output Connector: Integral 5-pin XLRM-type
- Cable: 0.61 m (2.0′) long, 8-conductor shielded cable with 5-pin XLRF-type connector at microphone end, two standard 3-pin XLRM-type connectors at output end
- Accessories Furnished: AT8405a stand clamp for 5/8″-27 threaded stands; AT8145 windscreen; protective carrying case
Key Features:
- Stereo Shotgun Design: Captures high-quality stereo audio in demanding professional applications, ideal for broadcast and field recording.
- Mid-Side (MS) Stereo Configuration: Provides excellent control over the stereo image, allowing adjustments during post-production.
- Switchable Low-Frequency Roll-Off: Reduces pickup of low-frequency ambient noise and rumble.
- Compact and Lightweight: Easy to handle and mount on a boom pole or camera.
- Phantom Power Operation: Requires 48V DC phantom power for operation.
The BP4027 is designed to offer a high level of performance for professional audio recording, providing excellent stereo imaging and sound quality in a compact and lightweight package.
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