Shure BETA 91A Half-Cardioid Condenser Kick-Drum Microphone (Includes Integrated Preamplifier and Male XLR Output) Uniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound Precision-engineered low-profile design features integrated preamplifier and XLR connector to maximize setup efficiency while minimizing stage clutter Frequency response tailored for kick drum/low frequency applications with a wide dynamic range for use in high SPL environments Two-position contour switch to maximize attack and clarity depending on application: select the flat response setting or the low-mid scoop setting for a strong low frequency punch with plenty of higher frequency attack Uniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound Precision-engineered low-profile design features integrated preamplifier and XLR connector to maximize setup efficiency while minimizing stage clutter Frequency response tailored for kick drum/low frequency applications with a wide dynamic range for use in high SPL environments Two-position contour switch to maximize attack and clarity depending on application: Select the flat response setting or the "low-mid scoop" setting for a strong low frequency "punch" with plenty of higher frequency attack Precision-engineered low-profile design features integrated preamplifier and XLR connector To maximize setup efficiency while minimizing stage clutter Flat response setting or the "low-mid scoop" setting for a strong low frequency "punch" with plenty of higher frequency attack