Shure Beta 91A Instrument Microphone
Availability:
In StockAvailable for shipment within one business day, or pickup from our Jamaica, NY warehouse during regular business hours.
Description
The Shure Beta 91A is designed for use with kick drums, piano and other traditional low frequency applications. An updated microphone capsule is tailored for bass-heavy environments to produce a powerful low frequency response, and a new design integrates the preamplifier and XLR connection for easy setup and minimal stage clutter. The Beta 91A combines superior attack and punch for studio-quality sound, even at extremely high sound pressure levels (SPLs).
Features:
- Premier live performance microphone with Shure quality, ruggedness, and reliability
- Uniform half-cardioid polar pattern (in the hemisphere above mounting surface) for maximum gain before feedback and rejection of off-axis sound
- Tailored frequency response for kick drums and bass-heavy instruments
- Wide dynamic range for use in high SPL environments
- Two-position contour switch enhances attack and clarity
- Integrated preamp and XLR connector reduce stage clutter and provide a quick, secure setup
- Low profile design requires no external mounting hardware
- Steel grille and die-cast metal construction resist wear and abuse
- Exceptional low-frequency reproduction
- Extremely high SPL handling
- High output level
- No crossover distortion
| Type | Electret Condenser |
| Frequency Response | 20 to 20,000 Hz |
| Polar Pattern | Half-cardioid (cardioidÊin hemisphere above mounting surface) |
| Impedance | 146 Ohms |
| SensitivityÊ(at 1 kHz, open circuit voltage) | -48.5 dBV/Pa (3.8mV) 1 Pascal=94 dB SPL |
| Maximum SPLÊ(1 kHz at 1% THD) | 1000 Ohm load: 151 dB, 2500 Ohm load: 155 dB |
| Signal-to-Noise RatioÊ(referenced at 94 dB SPL at 1 kHz) | 64 dB S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted |
| Dynamic RangeÊ(at 1 kHz) | 1000 Ohm load: 121.5 dB 2500 Ohm load: 125.5 dB |
| Common Mode RejectionÊ(20 Hz to 20 kHz) | > 55 dB |
| Clipping LevelÊ(20Hz-20 kHz at 1% THD) | 1000 Ohm load: 7.50 dBV, 2500 Ohm load: 12.5 dBV THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL |
| Self NoiseÊ(typical, equivalent SPL, A-weighted) | 29.5 dB SPL-A |
| Polarity | Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 |
| Weight | Net: 470 g (16.6 oz.) |
| Frequency Contour Switch | 7 dB of attenuation centered at 400 kHzÊ |
| Connector | Three-pin professional audio (XLR), male, balanced |
| Power Requirements | 11-52ÊVdc phantom power, 5.6 mA |
The Shure Beta 91A is designed for use with kick drums, piano and other traditional low frequency applications. An updated microphone capsule is tailored for bass-heavy environments to produce a powerful low frequency response, and a new design integrates the preamplifier and XLR connection for easy setup and minimal stage clutter. The Beta 91A combines superior attack and punch for studio-quality sound, even at extremely high sound pressure levels (SPLs).
Features:
- Premier live performance microphone with Shure quality, ruggedness, and reliability
- Uniform half-cardioid polar pattern (in the hemisphere above mounting surface) for maximum gain before feedback and rejection of off-axis sound
- Tailored frequency response for kick drums and bass-heavy instruments
- Wide dynamic range for use in high SPL environments
- Two-position contour switch enhances attack and clarity
- Integrated preamp and XLR connector reduce stage clutter and provide a quick, secure setup
- Low profile design requires no external mounting hardware
- Steel grille and die-cast metal construction resist wear and abuse
- Exceptional low-frequency reproduction
- Extremely high SPL handling
- High output level
- No crossover distortion
| Type | Electret Condenser |
| Frequency Response | 20 to 20,000 Hz |
| Polar Pattern | Half-cardioid (cardioidÊin hemisphere above mounting surface) |
| Impedance | 146 Ohms |
| SensitivityÊ(at 1 kHz, open circuit voltage) | -48.5 dBV/Pa (3.8mV) 1 Pascal=94 dB SPL |
| Maximum SPLÊ(1 kHz at 1% THD) | 1000 Ohm load: 151 dB, 2500 Ohm load: 155 dB |
| Signal-to-Noise RatioÊ(referenced at 94 dB SPL at 1 kHz) | 64 dB S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted |
| Dynamic RangeÊ(at 1 kHz) | 1000 Ohm load: 121.5 dB 2500 Ohm load: 125.5 dB |
| Common Mode RejectionÊ(20 Hz to 20 kHz) | > 55 dB |
| Clipping LevelÊ(20Hz-20 kHz at 1% THD) | 1000 Ohm load: 7.50 dBV, 2500 Ohm load: 12.5 dBV THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL |
| Self NoiseÊ(typical, equivalent SPL, A-weighted) | 29.5 dB SPL-A |
| Polarity | Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 |
| Weight | Net: 470 g (16.6 oz.) |
| Frequency Contour Switch | 7 dB of attenuation centered at 400 kHzÊ |
| Connector | Three-pin professional audio (XLR), male, balanced |
| Power Requirements | 11-52ÊVdc phantom power, 5.6 mA |
Your home for all things pro audio—backed by expertise and experience. Connect with us today.
Your home for all things pro audio—backed by expertise and experience. Connect with us today.
