The Beta 91A bottom drum microphone is a capacitive interface microphone that uses a half cardioid pickup pattern. This product is specially designed for low-frequency response, so you can feel a strong and powerful low-frequency response while withstanding extremely high sound pressure levels (SPL),bringing you extraordinary impact and perfect sound effects for heavy blows.

The Beta 91A is mainly used with kick drums and is also suitable for other low-frequency applications, including piano.