Shure BETA 91 Half-cardioid Condenser Kick Drum Microphone with RPM626 Pre-amplifier.
What's Included With This Item:
- Storage Bag 26B21
- Preamplifier RPM626
- 4.6 m (15 ft) heavy-duty cable
- TA3F to TA4F connectors C98D
The Shure BETA 91 is a high performance condenser microphone with a tailored frequency response designed specifically for kick drums and other instruments. It provides superb attack and punch, and delivers studio quality sound, with minimal distortion even at extremely high sound pressure levels.
The BETA 91 features a half-cardioid pattern (cardioid in the hemisphere above the mounting surface) throughout its frequency range to insure high gain before feedback and excellent rejection of unwanted sound.
|Type||Cardioid condenser (electret bias)|
|Frequency Response||20 to 20,000 Hz|
|Polar Pattern||Half-cardioid (cardioid in hemisphere above mounting surface), uniform with frequency, symmetrical around axis.|
|Impedance||Output Impedance 150 ohms (actual)
Signal-to-Noise Ratio 59 dB re 94 dB SPL
|Output Level||At 1,000 Hz: Open Circuit Voltage: 59 dBV/Pa* (1.1 mV) typical (1 Pa = 94 dB SPL)
Maximum SPL (20 Hz to 20 kHz, less than 1% THD) 2.5 k ohms load 160 dB 1 k ohms load 156 dB
Preamplifier Output Clipping Level (20 Hz to 20 kHz, less than 1% THD*) 2.5 k ohms load 6 dBV (2.0 V) 1 k ohms load 2 dBV (1.26 V) Dynamic Range (20 Hz to 20 kHz, less than 1% THD, 2.5 k ohms load) 125 dB (max SPL minus A-weighted noise)
Output Noise 35 dB SPL (typical), A-weighted
|Connector||Cable 4.6 m (15 ft) heavy-duty, two-conductor shielded, TA4F to TA3F connectors|
|Polarity||Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Case: Matte-black , painted, die-cast, zinc-alloy case with matte-b lack
|Dimensions||95 mm x 129 mm x 19 mm (3.75 in. x 5.08 in. x 0.75 in.)|
|Weight||382 grams (13.5 oz) less cable|
|Power Requirements||Power Phantom Power: 48 Vdc ±4 Vdc (IEC-268-15/DIN 45 596), positive pins 2 and 3.
Electromagnetic Hum Pickup -7.5 dB equivalent SPL in 1 mOe field (60 Hz)