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Shure Beta 91A Boundary Microphone

BH #SHBETA91A • MFR #BETA 91A
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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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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

Key Specs
Polar Pattern
Half-Cardioid
Element Type
Electret Condenser
Controls
Low-Mid Cut
Frequency Response
20 Hz to 20 kHz
Maximum SPL
155 dB (1 kHz, 1% THD, 1-Kilohm Load)
151 dB (1 kHz, 1% THD, 2.5-Kilohm Load)
Analog Output
1x XLR 3-Pin
Power Sources
Phantom Power
Microphone
Polar Pattern
Half-Cardioid
Element Type
Electret Condenser
Sound Field
Mono
Orientation
N/A to Boundary Mics
Controls
Low-Mid Cut
Filter & EQ
Low Cut: -7 dB at 400 Hz
Circuitry
Solid-State
Performance
Frequency Response
20 Hz to 20 kHz
Maximum SPL
155 dB (1 kHz, 1% THD, 1-Kilohm Load)
151 dB (1 kHz, 1% THD, 2.5-Kilohm Load)
Sensitivity
3.8 mV/Pa / -48.5 dBV/Pa
Dynamic Range
125.5 dB (2500-Ohm Load, 1 kHz at 1% THD)
121.5 dB (1000-Ohm Load, 1 kHz at 1% THD)
Equivalent Noise Level
29.5 dB SPL (A-Weighted, Typical)
Connectivity
Analog Output
1x XLR 3-Pin
Power
Power Sources
Phantom Power
Operating Voltage
11 to 52 V (Phantom Power)
Physical
Color
Blue / Gray
Mounting Thread Size
No Mount Included
Dimensions
H: 3.7 x W: 0.8 x L: 5.5" / H: 95.1 x W: 20.3 x L: 139.1 mm
Weight
16.6 oz / 470 g
Packaging Info
Package Weight
1.65 lb
Box Dimensions (LxWxH)
10 x 5 x 3.4"

Shure Beta 91A Reviews

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Is the Beta91A manufactured in Mexico or China ?

Is the Beta91A manufactured in Mexico or China ?
Asked by: Nabil
The Shure Beta 91A Boundary Microphone is manufactured in Mexico.
Answered by: Lisa S
Date published: 2023-02-27

For grand piano, does this sound better with one ...

For grand piano, does this sound better with one or two Beta 91A microphones?
Asked by: Robert
One Shure Beta 91A Boundary Microphone is all you need to mic a grand piano.
Answered by: Lisa S
Date published: 2023-03-26
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