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Shure

Shure Beta 181/BI Ultra-Compact Side-Address Condenser Instrument Microphone with Bidirectional Polar Pattern Capsule

SKU: SHBETA181B MFR: BETA 181/BI
Please note! This is a Special Order Item and is Non Cancelable and Non Returnable.
We Charge you when you place your order. Approximate arrival at Adorama 1 - 2 Weeks from date of order.
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$624.00 List Price

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$499.00 $20 per week
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About the 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 Includes

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

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)

Shure BETA 181/BI Specifications

Cartridge Type Electret Condenser
Polar Pattern Bi-directional
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)
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