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Shure Beta 91A Boundary Microphone

BH #SHBETA91A • MFR #BETA 91A
Shure Beta 91A Boundary Microphone
Key Features
  • Wide Frequency Response
  • Low-Profile Design
  • Cardioid Polar Pattern
  • Interchangeable Cartridge
The Shure Beta 91A is a boundary microphone that can double as a kick drum mic, as it can capture the punch and attack of low-frequency instruments such as kick (bass) drums. It features a wide frequency response well suited for capturing a variety of audio signals such as organ and piano. The flat, boundary design also aides in producing a strong, solid low-end response, as well as make it easy to mount inside of a bass drum. The Beta 91A is ideal for both recording and sound reinforcement alike.
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$249.00
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Shure Beta 91A Overview

The Shure Beta 91A is a boundary microphone that can double as a kick drum mic, as it can capture the punch and attack of low-frequency instruments such as kick (bass) drums. It features a wide frequency response well suited for capturing a variety of audio signals such as organ and piano. The flat, boundary design also aides in producing a strong, solid low-end response, as well as make it easy to mount inside of a bass drum. The Beta 91A is ideal for both recording and sound reinforcement alike.

Uniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound
Low-profile design features integrated preamplifier and XLR connector to facilitate 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 attack
Furnished with zipper pouch
UPC: 042406187176

Shure Beta 91A Specs

Microphone
CapsuleElectret Condenser
Polar PatternHalf-Cardioid
Tone AdjustmentLow Cut:
-7 dB at 400 kHz
On-Board ControlsLF
Performance
Frequency Range20 Hz to 20 kHz
Maximum SPL155 dB SPL (1 kHz, 1% THD, 1-Kilohm Load)
151 dB SPL (1 kHz, 1% THD, 2.5-Kilohms Load)
Impedance146 Ohms
Sensitivity-48.5 dBV/Pa
3.8 mV/Pa
Dynamic Range125.5 dB
Signal-to-Noise Ratio64.5 dB
Equivalent Noise Level29.5 dB SPL A-Weighted (Typical)
CMRR55 dB
Connectivity
Output Connectors (Analog)1 x XLR 3-Pin
Power
Operating Voltage11 to 52 V (Phantom Power)
Operating Current Consumption5.4 mA
Physical
DimensionsH: 3.7 x W: 0.8 x L: 5.5" / H: 95.1 x W: 20.3 x L: 139.1 mm
Weight16.6 oz / 470 g
Packaging Info
Package Weight1.85 lb
Box Dimensions (LxWxH)10 x 5 x 3.4"

Shure Beta 91A Reviews

It Kicks!

By Matthew
Rated 5 out of 5
Date: 2021-06-23

I hate PCM mics on kick drums, but the Shure Beta 91A is changing my mind!

Thunder!

By gary_vineyard
Rated 5 out of 5
Date: 2015-02-25

This mic truly brings the Thunder to your kick performance (lightning not included, LOL)!

The best application for pianos

By Anonymous
Rated 5 out of 5
Date: 2015-02-11

Never could get a full rich natural sound until we installed this mic. It is used for live worship. Really allows for clear separation of tones without losing the natural sound of the piano.

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