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Shure – BETA 181 Side-Address Condenser Microphone with interchangeable capsules

Shure

Side-address condenser microphone includes XLR preamplifier, microphone clip, windscreen, zippered case, and choice of condenser capsule. Capsule options include cardioid, supercardioid, bi-directional, and omni-directional polarities.

SKU: SHUB181 Categories: , , ,
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Description

Beta 181 Applications – This Beta 181 is a multipurpose instrument microphone and can be used on a wide variety of applications including guitars, bass and drums (overheads and snares). A total of four different capsules (Cardioid, Supercardioid, Bi-directional, Omni-directional) are available, allowing you to interchange them according to application.

Interchangable Capsule Options – The RPM181/C is a cardioid condenser capsule for the Beta 181. The RPM181/S is a super cardioid condenser capsule for the Beta 181. The RPM181/BI is a bi-directional condenser capsule for the Beta 181. The RPM181/O is a omni directional condenser capsule for the Beta 181.

Applications for the different capsules – The cardioid capsule is best suited to overheads, piano and acoustic instruments. You can also use the cardioid capsule for M/S stereo micing (in conjunction with another microphone with a bi-directional capsule). The supercardioid capsule is best suited to snare, toms, acoustic instruments and other forms of close distance micing. The omni-directional capsule could be used for choirs, orchestras and ambient recording applications. Lastly, the Bi-directional capsule can be used for mono overheads, or for the recording of two instruments simultaneously on one channel.

Features

  • Interchangeable polar pattern capsules attach to a compact preamplifier with integrated XLR connections
  • 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

In the Box

The Beta 181 can be purchased with any one of the four mic capsules available. You’ll then need to buy any additional capsules you want seperately.

  • 1 – A57F Mic Clip
  • 1 – A181C Zippered Carrying Case
  • 1 – A181WS Windscreen

 

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Shure Beta Microphones

Consistently excellent performance has made Beta Microphones the choice of top performers worldwide.

Additional information

Weight 0.14 kg
Type

Electret Condenser

Polar Pattern

181/C: Cardioid
181/S: Supercardioid
181/O: Omnidirectional
181/BI: Bidirectional

Frequency Response

20 to 20,000 Hz

Output Impedance

110 Ω

Sensitivity open circuit voltage, @ 1 kHz, typical

Cardioid: –46.5 dBV/Pa[1] (4.7 mV)
Supercardioid: –49.5 dBV/Pa[1] (3.4 mV)
Omnidirectional: –52.0 dBV/Pa[1] (2.5 mV)
Bidirectional: –51.0 dBV/Pa[1] (2.8 mV)

Maximum SPL 1 kHz at 1% THD

2500 Ω load
Cardioid: 151.5 dB SPL
Supercardioid: 154.5 dB SPL
Omnidirectional: 157.0 dB SPL
Bidirectional: 156.0 dB SPL
1000 Ω load
Cardioid: 149.0 dB SPL
Supercardioid: 152.0 dB SPL
Omnidirectional: 154.0 dB SPL
Bidirectional: 153.5 dB SPL

Signal-to-Noise Ratio

Cardioid: 73.5 dB
Supercardioid: 71.5 dB
Omnidirectional: 70.5 dB
Bidirectional: 71.0 dB

Dynamic Range

2500 Ω load
Cardioid: 131.0 dB
Supercardioid: 132.0 dB
Omnidirectional: 133.5 dB
Bidirectional: 133.0 dB
1000 Ω load
Cardioid: 128.5 dB
Supercardioid: 129.5 dB
Omnidirectional: 130.5 dB
Bidirectional: 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

Cardioid: 20.5 dB SPL-A
Supercardioid: 22.5 dB SPL-A
Omnidirectional: 23.5 dB SPL-A
Bidirectional: 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

11–52 V DC[4] phantom power (IEC-61938)
2.4 mA, maximum

Weight

145 g (5.1 oz.)

Downloads

Spec Sheet Download
User Guide Download