

The Shure Beta 87C is a premium quality cardioid hand-held condenser vocal microphone with exceptionally smooth frequency response and high sound pressure level capability. It is ideal for a professional lead or backing vocalist either on stage, for live recording or in the studio. The cardioid polar pattern makes it ideal for use with in-ear monitoring.
22 dB(A)
139 dB
The primary difference is the pick-up pattern. The BETA 87A is a supercardioid; the BETA 87C is a cardioid. The 87C was introduced for performers using in-ear monitors. In brief, a cardioid mic is often preferred by in-ear monitor users as it sounds more "natural" with the in-ear mix.
If you use floor monitors, the BETA 87A may be a better choice as it will often provide a bit more gain before feedback than the BETA 87C. However, which model works better for you can only be decided via auditioning the mics.
Both models require phantom power for operation.