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Audio  »  Microphones Wired  » Shure

Shure BETA 181/BI Ultra Compact Side-Address Instrument Microphone (Bidirectional Capsule)

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MSRP: $624.00

Your Price $499.00

Shure BETA 181/BI Ultra Compact Side-Address Instrument Microphone (Bidirectional Capsule) image
Shure BETA 181/BI Ultra Compact Side-Address Instrument Microphone (Bidirectional Capsule)
Camcor Item No.136017328
Mfg. Part No.BETA 181/BI

Today's Date: August 21, 2019

Shure Beta 181/BI is an ultra-compact small-diaphragm side-address bidirectional capsule condenser microphone with multiple polar pattern capsule options for discreet placement and versatility in live and studio environments. Ideal for percussion, brass, and guitar and bass amps. 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..

Includes BETA 181/BI, stand adapter, windscreen, user guide, and carrying case that accommodates up to four polar pattern capsules.

Features

  • Interchangeable polar pattern capsules attach to a compact preamplifier with integrated XLR connections for the ultimate in low-profile application flexibility (Each Beta 181 ships with one polar pattern capsule and one XLR preamplifier. Capsules available separately for custom 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
  • Stand adapter
  • Windscreen
  • User guide
  • Carrying case that accommodates up to four polar pattern capsules.
  • Specifications

    Cartridge Type Electret Condenser
    Polar Pattern Bidirectional
    Frequency Response 20 to 20,000 Hz
    Output Impedance 110 Ω
    Sensitivity
    open circuit voltage,
    @ 1 kHz,
    typical
    51.0 dBV/Pa[1] (2.6 mV)
    1 Pa=94 dB SPL
    Maximum SPL
    1 kHz at 1%
    THD
    2500 Ω load: 156.0 dB SPL
    1000 Ω load: 153.5 dB SPL
    THD of microphone preamplifier when applied input signal level is equivalent to cartridge output
    at specified SPL
    Signal-to-Noise
    Ratio
    71.0 dB
    S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
    Dynamic Range 2500 Ω load: 133.0 dB
    1000 Ω load: 130.5 dB
    Clipping Level
    @ 1 kHz, 1%
    THD
    2500 Ω load: 10.5 dBV
    1000 Ω load: 7.5 dBV
    Self Noise
    equivalent SPL,
    A-weighted,
    typical
    23.0 dB SPL-A
    Common Mode
    Rejection
    20 to 20,000 kHz
    ≥55 dB
    Polarity Positive pressure on diaphragm produces positive
    voltage on pin 2 with respect to pin 3
    Power
    Requirements
    1152 V DC[4] phantom power (IEC-61938)
    2.4 mA, maximum
    Net Weight 1lb
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