Shure BETA 91A Kick Drum Microphone with Integrated Preamp

The Shure BETA 91A is a half-cardioid condenser boundary microphone purpose-built for kick drum and low-frequency instrument applications. Its flat, low-profile form factor sits directly inside a bass drum on a pillow or dampening pad, eliminating the need for internal mic stands or clamps that can shift during performance. The integrated preamplifier connects directly via a built-in XLR output, reducing the component count on stage and streamlining setup. This design makes the BETA 91A a favorite for touring engineers who need consistent, repeatable placement night after night.

Sonically, the microphone's frequency response is specifically tailored for low-frequency capture, with a wide dynamic range that handles the high sound pressure levels kick drums produce. The two-position contour switch is a key feature: the flat setting delivers a natural, full-range sound suitable for studio recording or jazz contexts, while the low-mid scoop setting carves out the muddiness and emphasizes the beater attack and sub-low thump, which is ideal for rock, pop, and live reinforcement. The half-cardioid polar pattern inherently rejects sound from below the mic's surface and from the sides, providing excellent isolation from snare bleed, hi-hats, and stage wash. It ships with a zipper storage pouch for protection between sessions.