Shure RPM181/O – Omnidirectional capsule for the Beta 181 microphone

Shure RPM181/O Omnidirectional Capsule for Beta 181

The Shure RPM181/O is a precision-engineered omnidirectional capsule designed for use with the Shure Beta 181 side-address instrument microphone system. Optimized for capturing natural ambience and balanced sound fields, this capsule excels in applications such as room miking, string ensembles, ambient recording, and mono drum overheads. Its omnidirectional polar pattern captures sound evenly from all directions, delivering a spacious and realistic sonic image without the need for critical microphone positioning.

When paired with the Shure RPM181/PRE preamp, the RPM181/O forms a compact and lightweight microphone solution weighing just 5.1 oz, making it ideal for use in tight or complex recording environments. With a wide frequency response, exceptionally high SPL handling, and broad dynamic range, the capsule accurately reproduces everything from subtle room detail to powerful acoustic sources with minimal distortion.

Built for durability, the RPM181/O features a hardened steel mesh grille that resists dents, wear, and abuse. Its carefully designed diaphragm provides consistent, textbook-style polar response, outstanding low-frequency reproduction, and reliable performance across demanding studio and live recording situations.

Features of Shure RPM181/O

• Interchangeable omnidirectional capsule for Shure Beta 181 microphones

• Ideal for ambient recording, room capture, and ensemble applications

• Suitable for mono drum overheads and string ensembles

• Omnidirectional polar pattern captures sound evenly from all directions

• Wide dynamic range for natural and detailed audio reproduction

• Extremely high SPL handling for loud sound sources

• Minimal crossover distortion for clean, accurate sound

• Exceptional low-frequency response

• Locking ring ensures secure attachment to the RPM181/PRE preamp

• Compact and lightweight design for placement in tight spaces

• Hardened steel mesh grille resists denting, wear, and abuse

Specifications of Shure RPM181/O