Shure BETA 181 Ultra-Compact Side-Address Condenser Instrument Microphone Bi-Directional
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Shure BETA 181 Ultra-Compact Side-Address Condenser Instrument Microphone Bi-Directional

SKU: SHBETA181B MFR: BETA 181/BI
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Key Features

  • Capture pristine sound with the Shure Beta 181 instrument microphone, perfect for studio recording.
  • Achieve exceptional clarity with this condenser microphone, ideal for detailed instrument reproduction.
  • Enjoy versatile recording options; the Beta 181 excels on drums, guitars, and various instruments.
  • Minimize unwanted noise; this low-noise microphone ensures clean, professional-quality audio capture.
  • Rely on Shure's durability; the Beta 181 is built to withstand rigorous use, session after session.
  • Selectable polar patterns offer flexibility in diverse recording environments, optimizing sound capture.
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Special Order Item?Estimated to Ship: 08/02/2025
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Review Summary

Shure BETA 181/BI Specifications

  • Cartridge Type

    Electret Condenser

  • Frequency Response

    20Hz to 20kHz

  • Output Impedance

    110 ohm

  • Sensitivity

    -51.0 dBV/Pa (2.6 mV) (open circuit voltage, @ 1 kHz, typical)

  • Maximum SPL

    2500 ohm load: 156.0 dB SPL
    1000 ohm load: 153.5 dB SPL (1 kHz at 1% THD)

  • Signal-to-Noise Ratio

    71.0 dB

  • Dynamic Range

    2500 ohm load: 133.0 dB
    1000 ohm load: 130.5 dB

  • Clipping Level

    2500 ohm load: 10.5 dBV
    1000 ohm load: 7.5 dBV (@ 1 kHz, 1% THD)

  • Self Noise

    23.0 dB SPL-A (equivalent SPL, A-weighted, typical)

  • Common Mode Rejection

    =55 dB

  • Polarity

    Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3

  • Power Requirements

    11-52 V DC phantom power (IEC-61938) 2.4 mA, maximum

  • Weight

    145 g (5.1 oz)

  • UPC Code

    042406187879

About Shure BETA 181/BI

The Shure Beta 181/BI is an ultra-compact, small-diaphragm side-address condenser microphone, designed for discreet placement and control in live and studio environments. Featuring interchangeable cardioid, supercardioid, omnidirectional and bidirectional capsule options for superior versatility, the small diaphragm design provides superior audio with consistent, textbook polar responses in a form factor small enough to get close to the source in the tightest conditions.

Shure BETA 181/BI Features

  • BETA 181/BI (bi-directional) for mono drum overhead, dual instrument sound source applications, Blumlein stereo technique (pair of Beta 181/BI)
  • Interchangeable polar pattern capsules attach to a compact preamplifier with integrated XLR connections for the ultimate in low-profile application flexibility
  • Precision-engineered, compact side-address design features innovative locking ring to provide secure connection between capsule and preamplifier
  • Frequency response tailored for wide dynamic range applications for use in high SPL environments
  • Furnished with stand adapter, windscreen and carrying case (carrying case will securely protect up to four polar pattern capsules)

Warranty Information

This product has a limited warranty of 24 months.

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Key Features

  • Capture pristine sound with the Shure Beta 181 instrument microphone, perfect for studio recording.
  • Achieve exceptional clarity with this condenser microphone, ideal for detailed instrument reproduction.
  • Enjoy versatile recording options; the Beta 181 excels on drums, guitars, and various instruments.
  • Minimize unwanted noise; this low-noise microphone ensures clean, professional-quality audio capture.
  • Rely on Shure's durability; the Beta 181 is built to withstand rigorous use, session after session.
  • Selectable polar patterns offer flexibility in diverse recording environments, optimizing sound capture.

What's in the box:

  • Shure BETA 181 Ultra-Compact Side-Address Condenser Instrument Microphone
  • A57F Mic Clip
  • A181C Zippered Carrying Case
  • A181WS Windscreen
  • Shure Warranty