The Beta 87A offers a smooth, tailored response for warm, accurate sound. Its high performance and roadworthy ruggedness bring studio-quality vocal reproduction to tours, field productions, and performance venues.Leading the field for studio-quality sound in live performance, the Beta 87A and 87C have a smooth, tailored response for warm, accurate sound.
Consistent supercardioid polar pattern for high gain-before-feedback
Smooth response with gradual presence rise
Electronic LF roll-off compensates for proximity effect
117 dB dynamic range
Low susceptibility to RFI andEM hum
Advanced shock-mounted cartridge system
Built-in pop filter
Cartridge Type
Condenser (electret bias)
Frequency Response
50 to 20,000 Hz
Polar Pattern
Supercardioid
Output Impedance
Rated at 150 ohms (100 ohms actual +/- 20%)
Recommended minimum load impedance: 800 ohms
Sensitivity (at 1,000 Hz)
Open Circuit Voltage -52.5 dBV/Pa (2 mV)
(1 Pa = 94 dB SPL)
Clipping Level (at 1,000 Hz)
1000 ohm Load: -6 dBV (0.5 V)
Maximum SPL (at 1,000 Hz)
140.5 dB (0.25% THD, 1000 ohm load)
Self-Noise
(equivalent sound pressure level; measured with true rmsvoltmeter)
23.5 dB typical, A-weighted
25.5 dB typical, weighted per DIN 45 405 Dynamic Range
117 dB (maximum SPL to A-weighted noise level)
Signal-to-Noise Ratio
70.5 dB at 94 dB SPL (IEC 651)
(S/N ratio is difference between 94 dB SPL and equivalentSPL of self-noise A-weighted.)
Polarity
Positive pressure on diaphragm produces positive voltage onpin 2 relative to pin 3
Power
Phantom Supply Requirement: 11 to 52 Vdc, positive at bothpins 2 and 3
Current Drain: 1.0 to 1.2 mA
Connector
Three-pin (XLR) professional audio
Case
Aluminum construction with blue metallic finish, andhardened steel grille with nickel satin chrome plating
Net Weight
207 grams (7.6 oz)