Microphones : Instrument Microphones : Shure Incorporated - BETA 91A

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

More Product Information Below

Compare

Project List

Product Info

Tech Specs

Related Products

Documents

The Beta 91A is designed for use with kick drums, as well as other traditional low-frequency applications including piano. Featuring an updated microphone capsule, integrated preamplifier, and XLR connection, Beta 91A offers a strong low-frequency response and is specifically tailored for bass frequency applications. The Beta 91A combines superior attack and punch for studio-quality sound, even at extremely high sound pressure levels (SPL).

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

BETA 98H/C - Premium Cardioid Condenser Instrument Microphone with Preamplifier

Shure BETA 91A spec sheet.pdf 823 kb - Data Sheet

Project List

Shure BETA 91A user guide.pdf 2368 kb - Instructions

Project List

Suggested Products

Unidirectional Condenser Instrument Microphone with TA4F Connector

by Electro-Voice

YDM505 Dynamic Microphone

by Yamaha Corporation

PL® Series Wired Microphone

by Electro-Voice

Products

Half-Cardioid Condenser Microphone

Series: Shure

Model: BETA 91A

Suggested Products

Contact

Solutions

Insights

About

Privacy Policy

Terms & Conditions

Copyright © 2025 A-V Services, Inc. | All Rights Reserved | Powered By Chatter Creative