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ปรึกษาด้านเทคนิก
Professional Line + Gradient Condenser Shotgun Microphone (15.55")
With directivity equal to mics up to 50% longer, the BP4071 has been specially created to meet the pickup demands of broadcasting, film/TV sound, professional recording, wildlife recording and theater sound reinforcement. Particularly useful for miking dynamic action in film/TV audio as well as in “spot” miking techniques in the music studio or theater, the 15.55"-long BP4071 provides a low noise floor and direct-coupled, balanced output for a clean signal even in high-output conditions. Audio-Technica has pioneered an interference tube design in the BP4071 that provides the same directivity as mics up to 50 percent longer.
Features
ELEMENT | Externally polarized (DC bias) capacitor |
POLAR PATTERN | Line + gradient |
FREQUENCY RESPONSE | 20-20,000 Hz |
LOW FREQUENCY ROLL-OFF | 80 Hz, 12 dB/octave |
OPEN CIRCUIT SENSITIVITY | -29 dB (35.5 mV) re 1V at 1 Pa |
IMPEDANCE | 50 ohms |
MAXIMUM INPUT SOUND LEVEL |
141 dB SPL, 1 kHz at 1% T.H.D.; 151 dB SPL, with 10 dB pad (nominal) |
NOISE | 13 dB SPL |
DYNAMIC RANGE (typical) | 128 dB, 1 kHz at Max SPL |
SIGNAL-TO-NOISE RATIO | 81 dB, 1 kHz at 1 Pa |
PHANTOM POWER REQUIREMENTS | 48V DC, 4.8 mA typical |
SWITCHES | Flat, roll-off; 10 dB pad (nominal) |
WEIGHT | 136 g (4.8 oz) |
DIMENSIONS |
395.0 mm (15.55") long, 21.0 mm (0.83") maximum body diameter |
OUTPUT CONNECTOR | Integral 3-pin XLRM-type |
ACCESSORIES FURNISHED | AT8405a stand clamp for 5/8"-27 threaded stands; 5/8"-27 to 3/8"-16 threaded adapter; AT8145 windscreen; two O-Rings; protective carrying case |
AUDIO-TECHNICA CASE STYLE | SG3 |