Shure BETA57A User Manual

Shure Incorporated
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BETA57A 
Instrument Microphone
General Description
The Shure BETA 57 A is a precision-engineered, dynamic microphone designed for professional live sound reinforcement and
studio recording. A tight, supercardioid pattern delivers high gain before feedback, maximum sound isolation, and minimum off-
axis tone coloration.
The tailored frequency response of the versatile Beta 57A accentuates the fine details of amplified and acoustic instruments,
especiallyinhighsoundpressurelevel(SPL)environments.Aprovenshockmountsystem,hardenedsteel-meshgrille,andsu-
perior build quality withstand the rigors of daily sound reinforcement.
Features
Premier live performance microphone with Shure quality, ruggedness, and reliability
Uniform supercardioid pick-up pattern for maximum gain before feedback and superior rejection of off-axis sound
Tailored frequency response specifically shaped for guitars, drums and vocals
Neodymium magnet for greater sensitivity and higher output
Advanced pneumatic shock mount system that minimizes transmission of mechanical noise and vibration
Dent-resistant steel mesh grille and enamel coated die-cast metal construction resist wear and abuse
Applications
General Rules for Use
Do not cover any part of the microphone grille with your hand, as this will adversely affect microphone performance.
Aim the microphone toward the desired sound source (such as the talker, singer, or instrument) and away from unwanted
sources.
Place the microphone as close as practical to the desired sound source.
Work close to the microphone for extra bass response.
Use only one microphone to pick up a single sound source.
For better gain before feedback, use fewer microphones.
Keepthedistancebetweenmicrophonesatleastthreetimesthedistancefromeachmicrophonetoitssource(“threeto
onerule”).
Place microphones as far as possible from reflective surfaces.
Add a windscreen when using the microphone outdoors.
Avoid excessive handling to minimize pickup of mechanical noise and vibration.
Applications and Placement
The following table lists the most common applications and placement techniques. Keep in mind that microphone technique is
largelyamatterofpersonaltaste;thereisnoone“correct”microphoneposition.
®

Shure BETA57A Specifications

General

Type	Dynamic
Frequency Response	50 Hz to 16 kHz
Polar Pattern	Supercardioid
Output Impedance	150 Ohms
Sensitivity	-51 dBV/Pa (2.8 mV)
Connector	XLR
Weight	275 g