Shure BETA 91A – Boundary Condenser Mic for Kick Drum and Piano

The BETA 91A is a half-cardioid boundary condenser microphone engineered specifically for low-frequency applications. It sits inside a kick drum or on a piano lid without any external mounting hardware, keeping your stage clean while delivering consistent, accurate sound every night.

Key Features

• Uniform half-cardioid polar pattern for maximum gain-before-feedback
• Effective rejection of off-axis sources on stage and in the studio
• Updated condenser capsule tailored for bass-frequency response
• Integrated preamplifier and XLR connector built into the low-profile housing
• Two-position contour switch: flat response for a natural sound, or low-mid scoop for deep punch with prominent high-frequency attack
• Wide dynamic range handles extremely high SPL without distortion
• Includes zipper pouch for storage and transport

Ideal For

The BETA 91A is the go-to choice for drummers who need reliable kick drum capture in live or studio settings. It also excels as a boundary microphone inside a grand piano, providing a clear, detailed image with minimal cable clutter. If your work involves consistently loud, low-frequency sources, this mic is built for it.