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H70017000000000

Shure Beta 181/O Instrument Mic   

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The Shure Beta 181/O Instrument Mic is a Shure Beta RPM181/Pre preamp fitted with a Shure RPM181/O omnidirectional capsule. The RPM181/O capsule is i...Click To Read More About This Product

Available 06-13-2017

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OVERVIEW

A versatile ultra-compact Instrument mic fitted with an omnidirectional capsule.

The Shure Beta 181/O Instrument Mic is a Shure Beta RPM181/Pre preamp fitted with a Shure RPM181/O omnidirectional capsule. The RPM181/O capsule is ideal for use for ambient recordings or for instrument ensemble applications.

The Shure Beta 181 a multipurpose instrument microphone and can be used on a wide variety of applications including guitars, bass and drums (overheads and snares). It has a small diaphragm design that provides superior audio with textbook polar responses in a form factor compact enough to get close to the source in the tightest conditions. The Beta 181 has a precision-engineered, side-address design that features an innovative locking ring to provide secure connection between capsule and preamplifier with integrated XLR connections.

There are four different capsules available for the Beta 181 microphone: Cardioid (RPM181/C), Supercardioid (RPM181/S), Bi-directional (RPM181/BI), Omni-directional (RPM181/O). This makes the Beta 181 an extremely versatile and cost-effective mic that allows the user to interchange capsules according to the application. (Additional capsules sold separately). Comes with mic clip, zippered carrying case, and windscreen.

This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with slightly decreased headroom and sensitivity with supplies as low as 11 Vdc.

FEATURES
  • Premier live performance microphone with Shure quality, ruggedness, and reliability
  • Small diaphragm design provides superior audio with textbook polar responses
  • The RPM181/O capsule is ideal for use for ambient recordings or for instrument ensemble applications
  • Side-address form allows for discreet positioning in tight performance and recording settings
  • Frequency response tailored for wide dynamic range for use in high SPL environments
  • Compact preamp attaches to four interchangeable capsules for custom flexibility (capsules sold separately)
  • Innnovative locking ring provides a secure connection between capsule and preamp
  • Hardened steel mesh grille resists denting, wear, and abuse
  • Compact design, under 12 cm (5 in.), reduces stage clutter
  • Furnished with stand adapter and carrying case
SPECIFICATIONS

Beta 181/O Instrument Mic

  • Cartridge Type: Electret Condenser
    Polar Pattern: Omnidirectional
    Frequency Response: 20 to 20,000 Hz
    Output Impedance: 110 Î
    Sensitivity (open circuit voltage, @ 1 kHz, typical: -52.0 dBV/Pa (2.6 mV)
    Maximum SPL (1 kHz at 1% THD)
    2500 Î load: 157.0 dB SPL
    1000 Î load: 154.0 dB SPL

    Signal-to-Noise Ratio: 70.5 dB
    Dynamic Range:
    2500 Î load: 133.5 dB
    1000 Î load: 130.5 dB

    Clipping Level @ 1 kHz, 1% THD:
    2500 Î load: 10.5 dBV
    1000 Î load: 7.5 dBV

    Self Noise (equivalent SPL,A-weighted, typical): 23.5 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 11-52 V DC phantom power (IEC-61938): 2.4 mA, maximum
    Net Weight 145 g (5.1 oz.)
    Mic dimensions (Length x Diameter):
    4.40 in. x .80 in., (124.46 x 20.32mm)
    Capsule width: 1.36" (34.54mm)
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