AKG C451B SMALL DIAPHRAGM CARDIOID CONDENSER MICROPHONE WITH CASE AND WINDSCREEN
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Cardioid Polar Pattern
The Cardioid pick up pattern is useful in situations where off axis leakage is a problem. The 451B attenuates around the off-axis (side) sections of the microphone resulting in a directional pick up pattern.
Switchable 10 dB or 20 dB pads increase the microphone's SPL capability when close-micing, high-energy sound sources or driving preamps or mixers with limited headroom.
Switchable Highpass Filters
Switchable highpass filters (75 Hz or 150 Hz, 12 dB/octave). High pass filters accentuate mid and high end pressence by eliminating unnecessary low end frequencies. Often used when recording cymbals on drum kits.
To eliminate the mechanical problems of screw on capsules, the 451B features a fixed capsule, designed after the classic CK 1.
Flat Frequency Response
Ruler-flat on-axis frequency response of 20 Hz to 20 KHz (Ì_åÇí«̴å± 1.5dB) assures accurate recordings without any added coloration.
Polar Pattern Cardioid
Frequency Response 20 Hz - 20 kHz (+/-1.5dB)
Dynamic Range (Typical) 117 dB Maximum (A-Weighted)
Signal-to-Noise Ratio 73 dB-A (A-Weighted)
Maximum Input Sound Level 112 Pa = 135 dB (with 0 dB preattenuation)
355 Pa = 145 dB (with 10 dB preattenuation)
112 Pa = 155 dB (with 20 dB preattenuation)
Power Requirements 9 to 52v Phantom Power (to DIN/IEC 45 596)
Output Impedance Less than 200 Ohms
Recommended Load Impedance Greater than 1000 Ohms
Output Connectors XLR-3M Type
Pad Yes, Switchable to 0 dB, -10 dB, -20 dB
Low Frequency Roll-Off Yes, Switchable to Flat, 12 dB/Octave at 75 Hz or 150 Hz
Dimensions 6.3 x .75" (160.02 x 19.05mm) LxDiameter
Weight 4.4 oz. (124.67 g)