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Beta 91A Condenser Boundary Microphone

Used Shure Beta 91A Condenser Boundary Microphone

Mint Condition
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ON SALE: 5% OFF
Was: $230.00
$218.50
+$5.00 Shipping
Sorry, the item you are looking for was sold on June 19, 2026. We've left this page up for reference only. Check out the great alternatives on this page.
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John D.
Chicago, IL Sweetwater Customer Since 2015
(5)
Product Guide & Price Advisor. Overview includes item specs, sales history, similar listings, and more. View guide
Item Description
Serial: 98A14333 Listed 18 days ago
Excels in Every Low-frequency Situation, a must have for all serious musicians

This mic is an ultra-powerful low-end response, the Shure Beta 91A excels in every low-frequency situation. While kick drums are the obvious application, that’s not all this boundary condenser microphone can do. It’s also an effective way to capture pianos or any other bass-intensive source you can think of. Benefit from maximum gain before feedback, by virtue of a custom-tailored half-cardioid polar pattern, while impressive SPL handling effortlessly tackles extra-loud sources. A high-quality mic capsule design and integrated preamp yield superior attack and punch for studio-quality sound reproduction. The Beta 91A includes a 2-position contour switch to maximize clarity, as well as a low-profile design that enables it to fit anywhere.


The Beta 91A’s tailored frequency response makes it a top choice for loud, bass-heavy sources. Its uniform half-cardioid design all but rejects feedback, while supplying superior off-axis rejection. Its wide dynamic range ensures that it performs admirably in high-SPL environments. This boundary condenser mic has excelled in every situation we’ve encountered here at Sweetwater — kick drums and pianos in particular.



Intelligent design reduces stage clutter and resists abuse


Ask any live sound tech, and they’ll tell you — stage clutter is a serious thorn in their side. That’s one of the reasons why the Shure Beta 91A is a top choice amongst engineers. Its integrated preamp and XLR connector reduce stage clutter and ensure a quick, secure setup. Beyond that, its low-profile design requires no external mounting hardware and takes up little space. It’s also near bulletproof, thanks to its steel grille and die-cast metal construction.

2-position contour switch enhances clarity and attack


A 2-position contour switch on the bottom of the Beta 91A enables you to selectively filter its low-mid frequency response without necessitating any external gear. Set it for a flat response for natural-sounding audio reproduction, or flip it to the low-mid scoop setting for heightened attack and added low-frequency punch. This switch is perfect for situations where your signal needs a bit more clarity.


Shure Beta 91A Kick Drum Microphone Features:


Boundary condenser microphone for low-frequency sources

Tailored frequency response makes bass-heavy sources sound amazing

Custom-tailored half-cardioid polar pattern rejects feedback and supplies superior off-axis rejection

Impressive SPL handling effortlessly tackles extra-loud sources

2-position contour switch filters your low-frequency response for added clarity and attack

integrated preamp and XLR connector reduce stage clutter and ensure a quick, secure setup

Low-profile design requires no external mounting hardware and takes up little space

Extra-durable steel grille and die-cast metal construction

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