PRO AV CATALOG
Half-Cardioid Condenser Microphone
Series: Shure
Model: BETA 91A
- Uniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound
- Precision-engineered low-profile design features integrated preamplifier and XLR connector to maximize setup efficiency while minimizing 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 maximize 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 at
- Requires no external mounting or accessories for ease of use and storage
- Uniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound
- Precision-engineered low-profile design features integrated preamplifier and XLR connector to maximize setup efficiency while minimizing 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 maximize 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 at
- Requires no external mounting or accessories for ease of use and storage
- Furnished with zipper pouch
- Microphone Type - Condenser
- Polar/Pickup Pattern - Half-cardiod
- Spec Sheet available - Yes
- Impedance: 146 Ohms
- Maximum Frequency Response (Bandwidth): 20 kHz
- Maximum Frequency Response (Bandwidth): 20000 Hz
- Minimum Frequency Response (Bandwidth): 20 Hz
- Minimum Frequency Response (Bandwidth): 0.02 kHz
- Dynamic Range: 125.50 dB
- Impedance: 146 ohm
- Maximum SPL (Sound Pressure Level): 155 dB
- Sensitivity: -48.50 dBV
- Signal to Noise Ratio: 64.50 dB
- DC Voltage: 52 Volts
- Product Weight: 1.04 lbs
- Common Mode Rejection (20 Hz to 20 kHz): > 55 dB
- Clipping Level (20Hz-20 kHz at 1% THD):
1000 Ohm load
THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL - Self Noise (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
- Frequency Contour Switch: 7 dB of attenuation centered at 400 kHz
- Connector: Three-pin professional audio (XLR), male, balanced
- Power Requirements: 11-52 Vdc phantom power, 5.6 mA
- Regulatory Compliance: CE, EMC
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Advanced Sound & Communication
3817 Broadway
Kansas City, MO 64111
USA
(816) 931-9525
www.advancedsoundkc.com