Shure BETA91A Kick Drum Microphone
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Features
- Wide Frequency Response
- Low-Profile Design
- Cardioid Polar Pattern
- Interchangeable Cartridge
Description
The Shure Beta 91A is a boundary microphone that can double as a kick drum mic, as it can capture the punch and attack of low-frequency instruments such as kick (bass) drums. It features a wide frequency response well suited for capturing a variety of audio signals such as organ and piano. The flat, boundary design also aides in producing a strong, solid low-end response, as well as make it easy to mount inside of a bass drum. The Beta 91A is ideal for both recording and sound reinforcement alike.
Features
- Uniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound
- Low-profile design features integrated preamplifier and XLR connector to facilitate setup efficiency while minimising stage clutter
- Frequency response tailored for kick drum/low frequency applications with a wide dynamic range for use in high SPL environments
- Two-position contour switch to maximise attack and clarity depending on application: select the flat response setting for natural sound in most applications or the Low-Mid Scoop setting for a strong low frequency punch with plenty of higher frequency attack
- Furnished with zipper pouch
Specifications
Transducer | Condenser (electret bias) |
Polar Pattern | Half-cardioid |
Frequency Response | 20 to 20,000 Hz |
Output Impedance | 146 Ohms |
Sensitivity | -48.5 dBV/Pa (3.8 mV) |
Maximum SPL | 2500-Ohm load: 155 dB (1 kHz at 1% THD) 1000-Ohm load: 151 dB (1 kHz at 1% THD) |
Maximum Input Sound Level | 20 Hz to 20 kHz, less than 1% THD |
Signal-to-Noise Ratio | 64.5 dB |
Dynamic Range | 2500-Ohm load: 125.5 dB (1 kHz at 1% THD) 1000-Ohm load: 121.5 dB (1 kHz at 1% THD) |
Clipping Level | 2500-Ohm load: 12.5 dBV 1000-Ohm load: 7.5 dBV |
Self Noise (Equivalent SPL) | 29.5 dB SPL (A-weighted) |
Common Mode Rejection | ≥55 dB (20 Hz to 200 kHz) |
Switch | Frequency Contour Switch: 7 dB of attenuation centred at 400 kHz |
Power Requirements | Phantom Power: 48 VDC +/- 4 Vdc (IEC-268-15/DIN 45 596), positive pins 2 and 3 |
Polarity | Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 |
Power Requirements | 11 to 52 VDC phantom power, 5.4 mA |
Output Connectors | 1 x XLR male, balanced |
Dimensions | 95.1 x 139.1 x 20.3 mm |
Weight | 470 g |
In The Box
- Shure BETA91A Kick Drum Microphone
- Zippered Carrying Bag
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Details
- Product: Shure BETA91A Kick Drum Microphone
- Manufacturer: Shure
- Model: BETA91
- SKU: BETA91A
- RM Product #: 4010
- Element Type: Condenser
- Polar Pattern: Cardioid
- Warranty: 2 year manufacturer warranty (excluding consumable e.g. lithium-ion batteries).