Product Description
The Shure Beta 91A Condenser Boundary Microphone is a professional-grade solution for capturing powerful low-frequency sound with precision and clarity. Designed with a half-cardioid polar pattern, this microphone delivers maximum gain before feedback, making it the perfect choice for kick drums, pianos, and other bass-heavy instruments.
With its integrated preamp and XLR connector, the Beta 91A ensures fast setup, minimal stage clutter, and reliable performance. Its tailored frequency response enhances low-end reproduction while the 2-position contour switch allows you to fine-tune clarity and attack — perfect for live sound or studio recording.
Built with a rugged steel grille and die-cast metal housing, this microphone is engineered to withstand heavy use on stage or in the studio. The Beta 91A combines superior SPL handling, wide dynamic range, and Shure’s legendary durability, making it an essential tool for sound engineers and musicians who demand consistent, high-quality results.
Key Features:
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Boundary condenser microphone ideal for kick drums, pianos, and low-frequency instruments
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Half-cardioid polar pattern for reduced feedback and excellent off-axis rejection
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Tailored frequency response for deep, punchy bass and clear attack
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Handles up to 155dB SPL for loud, bass-heavy applications
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2-position contour switch for adjustable tonal shaping
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Integrated preamp and XLR connector for quick, clutter-free setup
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Low-profile design eliminates the need for external mounting hardware
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Durable steel grille and die-cast construction for long-lasting reliability
Tech Specs:
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Microphone Type: Boundary Electret Condenser
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Polar Pattern: Half-Cardioid
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Frequency Response: 20Hz–20kHz
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Max SPL: 155dB
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Output Impedance: 146 ohms
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Signal-to-Noise Ratio: 64.5dB
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Self Noise: 29.5dB (A-weighted)
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Connector: XLR
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Weight: 1 lb.
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Included: Zippered Carrying Bag
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Color: Black
