SHURE BETA91A-X Dynamic Kick Drum Microphone

ไมโครโฟนสำหรับกระเดื่องกลอง SHURE BETA91A ชนิดคอนเดนเซอร์ Condenser (electret bias) รูปแบบการรับเสียง Cardioid เหมาะสำหรับใช้กับเครื่องดนตรีที่มีความถี่ต่ำ ตอบสนองความถี่ 20 – 20,000 Hz, Impedance 150 ohms (actual)

The Shure Beta 91A Kick Drum Microphone is designed to accurately capture the punch and attack of low-frequency instruments such as kick (bass) drums. It features a wide frequency response well suited for capturing a variety of audio signals such as organ and piano.

The flat, boundary design also aides in producing a strong, solid low-end response, as well as make it easy to mount inside of a bass drum. The Beta 91A is ideal for both recording and sound reinforcement alike.


  • 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 for natural sound in most applications or the “low-mid scoop” setting for a strong low frequency “punch” with plenty of higher frequency attack
  • Requires no external mounting or accessories for ease of use and storage
  • Furnished with zipper pouch


TransducerCondenser (electret bias)
Polar PatternCardioid
Frequency Response20 to 20,000 Hz
Dynamic Range (Typical)20Hz to 20kHz, less than 1% THD, 2.5 kilohm load
Signal-to-Noise Ratio59dB re 94dB SPL
Maximum Input Sound Level20Hz to 20kHz, less than 1% THD
Power RequirementsPhantom Power: 48 VDC +/- 4 Vdc (IEC-268-15/DIN 45 596), positive pins 2 and 3
Output Impedance150 ohms (actual)
Output Connectors4.6m (15 ft) heavy-duty, two-conductor shielded, TA4F to TA3F connectors
Dimensions3.75 x 5.08 x 0.75″ (95 x 129 x 19mm)
Weight13.5 oz (382 g)