Shure Beta 91A

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Shure Beta 91A

Shure

Beta 91A

4.8 Expert Rating

Product Info

Article Number: 256092
Brand: Shure
Model: Beta 91A
Price: $324.50

* Prices may vary. Check retailer for current pricing and availability.

The Beta 91A is a seriously capable boundary mic – a real hybrid of the 91 and Beta 91. It’s fantastic for capturing deep, powerful kick drums or a full, rich piano tone. If you're looking for a reliable, low-profile mic for live or studio work where you want a focused, powerful sound, this is a great option.

Product Description

  • Shure Beta 91A
  • Condenser boundary microphone
  • 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
  • SPL: 155 dB SPL max (@ 2500 Ohm)
  • Sensitivity: -48.5 dBV/Pa
  • Output: XLR-male
  • Weight: 470 g
PROS
  • • Exceptional low-frequency response for drums and bass.
  • • Durable construction with a robust, low-profile design.
  • • Versatile switchable frequency response adapts to various sources.
  • • Excellent off-axis rejection minimizes room noise effectively.
CONS
  • • Limited polar pattern choice restricts certain recording scenarios.
  • • Requires phantom power, adding complexity to setup.
  • • Boundary placement can introduce floor resonances if not careful.

Product Video

Key Features

Mic Type Condenser Boundary Microphone
Polar Pattern Half Cardioid
Frequency Range 20 Hz - 20,000 Hz
Max SPL 155 dB SPL (at 2500 Ohms)
Connector XLR-Male
Weight 470 g

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Frequently Asked Questions

The low-frequency response is tailored for drums, while the high-frequency setting provides a more balanced response for piano or vocals, reducing muddiness.
Its low-profile design makes it easy to place directly on the drumhead without interfering with sticks or triggering mechanisms.
The Beta 91A generally offers a slightly more focused and powerful low-end compared to the C409, but the AKG has a broader, more natural sound signature.

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