Shure RPM181/O Omnidirectional Capsule for Beta 181  

Product #H70018

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Item Note:

This product has been discontinued but may be available as a Open Box item.

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An omnidirectional capsule for the versatile Shure 181 mic.

The Shure RPM181/O is an omnidirectional condenser capsule for the versatile Shure Beta 181 microphone. The RPM181/O l capsule is ideal for use for ambient recordings or for instrument ensemble applications.

The Shure Beta 181 (sold separately) is 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.

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).

An omnidirectional capsule for the Shure Beta 181 mic
Ideal for use for ambient recordings or for instrument ensemble applications

Expand the functionality of your Beta 181 mic.


RPM181/O Omnidirectional Capsule for Beta 181 Specifications:

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
Capsule width: 1.36" (34.54mm)
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