Beta 57A Instrument Microphone
The Shure Beta 57A® is a high output supercardioid dynamic microphone designed for professional sound reinforcement and project studio recording. It maintains a true supercardioid pattern throughout its frequency range. This insures high gain-before-feedback, maximum isolation from other sound sources, and minimum off–axis tone coloration.
Excellent for acoustic and electric instruments as well as for vocals, the extremely versatile Beta 57A dynamic microphone provides optimal warmth and presence. Typical applications include drums, guitar amplifiers, brass, woodwinds and vocals.
Cartridge Type
Condenser (electret bias)
Frequency Response
50 to 20,000 Hz
view larger
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 rms voltmeter)
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 equivalent SPL of self-noise A-weighted.)
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3
Power
Phantom Supply Requirement: 11 to 52 Vdc, positive at both pins 2 and 3
Current Drain: 1.0 to 1.2 mA
Connector
Three-pin (XLR) professional audio
Case
Aluminum construction with blue metallic finish, and hardened steel grille with nickel satin chrome plating
Dimensions
See User Guide
Net Weight
207 grams (7.6 oz) A25D Break Resistant Mount
The A25D is a break resistant mount for the SM58, SM57, SM87A, Beta 87A and all other microphones with 3/4-inch and larger handles. Available in quantities of 10 as the A25DM.
A55M Isolation Mount
Shock Stopper Isolation Mount/Swivel Adapter, Full Mount, for SM57, SM58, Beta 57A, Beta 58A, Beta 87A, Beta 87C or any Shure tapered handle mic.
A55HM Snap-in "Shock Stopper" Mount
Shock Stopper Isolation Mount/Swivel Adapter, Half Mount, for SM57, SM58, Beta 57A, Beta 58A, Beta 87A, Beta 87C or any Shure tapered handle mic.
A85WS Microphone Windscreen
Windscreen, Foam, for SM85, SM86, SM87A, Beta 87A, Beta 87C, and BG5.1 Microphones
R193 Cartridge for Beta 87 and Beta 87A
Direct replacement cartridge for the Shure Beta 87 and Beta 87A Microphones.
RK312 Grille for Wired & Wireless Beta 87, Beta 87A, Beta 87C
Grille for Wired and Wireless Beta 87, Beta 87A, Beta 87C Microphones.
User Guide English, French, German, Italian, Spanish 191 KB PDF
Quick Links
--------------------------------------------------------------------------------
FAQ's for Beta 87A
Beta Microphones
See also Beta 87C , Beta 58A
|
