Shure Beta 91A

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$242.00 to $289.00 Price Tier: Standard

4.5 (7)

3 Critic Reviews

1 Review

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Page last updated Jul 03, 2026

Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated July 3, 2026.

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4.5 (51)

$269.00

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5.0 (5)

$269.00

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4.8 (263)

$269.00

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5.0 (8)

$242.00 32 available New

$183.34 2 available Used

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4.0 (13)

$269.00

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5.0 (5)

$269.00

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4.9 (461)

$289.00

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£245.00

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5.0 (3)

$269.00

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Average Price: $259

Standard/Professional

$100

$401+

Price Tier

In the Condenser Microphones category, Shure Beta 91A is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Standard

High-end

Price History

Based on price data from 6 merchants for "Shure Beta 91A". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Experience the dynamic fusion of the Beta 91 and SM 91 in the Shure Beta 91A Kick-Drum Mic. This half-cardioid condenser boundary microphone is designed to deliver superior sound quality, perfect for both bass drums and piano/voice applications.

The Shure Beta 91A Kick-Drum Mic offers a broad frequency range from 20 - 20,000 Hz, ensuring that your music is captured in all its richness and depth. The microphone's impedance level stands at a sturdy 146 Ω. It operates smoothly within the 11-52 V phantom power range, ensuring consistent audio output.

Its high maximum SPL of 155 dB SPL (@ 2500 Ohm) and sensitivity of -48.5 dBV/Pa prove its effectiveness in handling high sound pressure levels without distortion. This microphone features a male XLR output, ensuring compatibility with a variety of audio equipment.

Key Features:

Combination of Beta 91 and SM 91
Switchable frequency range for bass drums or piano/voice applications
Polar pattern: half cardioid
Frequency range: 20 - 20,000 Hz
Impedance: 146 Ω
11-52 V Phantom power
Maximum SPL: 155 dB SPL (@ 2500 Ohm)
Sensitivity: -48.5 dBV/Pa
Output: XLR-male

Owner's manual

Shure Beta 91A User Manual

Product specs

Microphone Type	Boundary Electret Condenser
Polar Pattern	Half-Cardioid
Frequency Response	20Hz-20kHz
Max SPL	155dB
Output Impedance	146 ohms
Signal to Noise Ratio	64.5dB
Self Noise	29.5dB (A weighted)
Connector	XLR
Weight	1 lb.
Included Accessories	Zippered Carrying Bag

FAQs

What is the primary use of the Shure Beta 91A microphone?: The Shure Beta 91A is primarily used for capturing low-frequency instruments such as kick drums and pianos, providing a strong and clear bass response ideal for these applications.
How does the Shure Beta 91A differ from the Beta 91?: The Shure Beta 91A features an updated microphone capsule, resulting in a more natural high-frequency response compared to the original Beta 91.
What is the polar pattern of the Shure Beta 91A and what does it mean?: The Shure Beta 91A has a half-cardioid polar pattern, which focuses on capturing sound from the front while minimizing noise from the sides and rear, making it ideal for isolating sound sources like kick drums.
Is the Shure Beta 91A suitable for live performances?: Yes, the Shure Beta 91A is well-suited for live performances due to its high maximum SPL of 155dB and robust design, ensuring clear sound capture even in loud environments.
Does the Shure Beta 91A require phantom power?: Yes, the Shure Beta 91A requires phantom power to operate, as it is a condenser microphone. Ensure your audio interface or mixer provides phantom power for optimal performance.

Videos

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Sweetwater

How to Mic a Kick Drum, by Sweetwater

Sweetwater

Kick Mic Shootout // Shure Beta 52a vs Shure Beta 91a vs sE V-Kick vs Audix D6 // No Talking

Drummer’s Den Production

Shure Beta 91A Microphone Review

Production Expert

Shure Beta 91A Boundary Microphone: Get Your Kicks With This Updated Condenser (Video)

gearwire

Bass Drum Mic Comparison, Shure Beta 91a vs AKG D112 Sound Test

Timmy G

Which Boundary Mic is best for you? | Comparison

Thomann's Drum Bash

Shure Beta 52 vs Shure Beta 91A bass drum mic

JSonicStudios

Kraft Music - Shure Beta 91A Condenser Microphone Presentation

Kraft Music

Shure Beta 91A vs Beyerdynamic TG D71 - Kick Drum Mic Comparison

Faildedrum

Shure Beta 91A problem

Timmy G

Shure Beta 91A Half Cardioid Condenser Kick Drum Microphone Overview | Full Compass

Full Compass

Reviews

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PROS

Enhances kick drum sound with clarity and punch
Versatile for both live and studio applications, also suitable for pianos and stage
Built-in preamp and EQ switch for optimal sound adjustment
Convenient internal placement reduces stage clutter
Robust construction ensures durability
Half Cardioid design minimizes feedback and unwanted noise
Compatible with other mics for a fuller sound experience
Phantom power boost improves signal strength
Industry-standard recognized by professionals
Compact size and compatible with third-party suspension mounts

CONS

Prone to feedback on smaller live stages
May require a high pass filter for increased punchiness
External mounting options limited without third-party accessories

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Shure Beta 91A.

Features and functionality

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The Beta 91A excels in capturing significant low-end frequencies, offering a rich sound akin to an 808, contrary to common high-end-only use.
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Using a resistive XLR pad to manage the Beta 91A's output might reduce the available phantom power and current, potentially affecting performance.
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Use cases and applications

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The Beta 91A can be used alone for kick drums, providing both low-end depth and high-end attack, eliminating the need for multiple mics in many situations.
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For live settings, the Beta 91A is favored for its simplicity and effectiveness, often used solo when a port hole is available, streamlining setup and minimizing potential issues.
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In acoustic settings like cajon miking, the Beta 91A might require additional setup considerations to avoid distortion and maintain clarity.
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User experience

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Users find the Beta 91A's placement flexible, maintaining consistent sound quality without needing precise positioning inside the kick drum.
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Comparisons

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While some prefer the Beta 91A for its full-range capability, others compare its low-end performance to mics like the D6, noting the 91A's superior low-end clarity.
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Setup and maintenance

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Positioning the Beta 91A upside down inside the kick drum can help reduce snare bleed, enhancing sound clarity.
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The Beta 91A has high output levels, which can cause clipping with consoles like the Behringer QX2222 due to their minimum +10dB gain on XLR inputs.
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Placing the Beta 91A directly on a hard surface can cause vibrations that lead to clipping; using foam or a rag underneath can mitigate this issue.
Source

Critic Reviews

Shure Beta91A Condenser Boundary Microphone - A Real-World Review

mixonline.com

The Shure Beta 91A Condenser Boundary Microphone impresses with its robust build and adaptability for both live and studio settings. Its enhanced design, featuring a standard XLR output, eliminates the need for special cables, making it more user-friendly. The 91A offers a tighter low end and a balanced high-end beater snap, ideal for rock and metal mixes. While it shares the Beta 91's renowned punch, its noise floor remains typical of small diaphragm mics. The 91A's midrange contour switch effectively refines its sound, providing fuller bass and eliminating boxiness. Overall, it stands as a valuable tool for any drum recordist seeking a reliable and versatile mic.

positive

Full Review

Shure Beta Drum Mic Review | recording hacks

recordinghacks.com

The Shure Beta 91A boundary mic impresses with its robust build and ability to deliver a punchy kick drum sound with ease, thanks to its contour switch. Ideal for quick setups, it excels in capturing rich lows and clicky highs, though it requires a hole in the kick drum's resonant head for optimal placement. Its versatility extends to room mic duties, though it may capture strong cymbal presence. While it might not suit all kick drum setups, its sound quality and durability make it a valuable addition to any studio's mic arsenal.

positive

Full Review

Shure Beta Drum Mic Review | recording hacks

recordinghacks.com

The Shure Beta 91A shines as a robust boundary mic, perfect for kick drums with its impressive low-end presence and crisp high frequencies. The contour switch adds a punch, though not drastically. It's highly durable, designed to withstand rigorous use. While it excels in open kick drum setups, its utility as a room mic in unconventional placements adds versatility. However, without a resonant head entry, this mic might not be ideal. Overall, its solid build and sound quality ensure it’s a valuable addition for studio and live settings, especially for those needing quick setup and reliable performance.

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4.5 out of 5

Based on 1 Review and 7 Ratings

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