Bidirectional Condenser Microphone for Mono Instrument Overhead

The Shure Beta 181/BI is an ultra compact, bidirectional condenser microphone designed as a mono drum overhead.  The Shure Beta 181 is compatible with other Beta 181 interchangeable capsules to gain different polar patterns.  This enables discreet placement and versatility in tight conditions for various applications.

The Beta 181 capsules that are currently available are;

• RPM181/C (cardioid capsule) for drum overhead, piano, acoustic instrument applications, M/S stereo technique (paired with Beta 181/BI)
• RPM181/S (supercardioid capsule) for snare drum, acoustic instrument, close-miking applications
• RPM181/O (omnidirectional capsule) for ambient/room, instrument ensemble applications
• RPM181/BI (bidirectional) capsule for mono drum overhead, dual instrument sound source applications, Blumlein stereo technique (pair of Beta 181/BI)

You can also buy other complete Beta 181 versions, currently available are:

• Beta 181/C (cardioid)
• Beta 181/S (supercardioid)
• Beta 181/O (omnidirectional)

Shure Beta 181/BI Features:

• Interchangeable polar pattern capsules for the ultimate in low-profile application flexibility (each Beta 181 ships with one polar pattern capsule and one XLR preamplifier)
• Precision-engineered, compact side-address design features innovative locking ring to provide secure connection between capsule and preamplifier
• Capsules available separately for custom flexibility
• Frequency response tailored for wide dynamic range applications for use in high SPL environments