A versatile, durable, and precise single cardioid polar pattern instrument microphone. The KSM137 will produce superior results in any application requiring a high quality microphone. Typical applications include: close miking of acoustic instruments, overhead miking of drums and percussion, electric guitar amplifiers, brass and woodwind instruments, room ambiance pick-up, orchestras, choirs, wind ensembles, and low-frequency instruments such as double bass and kick drum. Performance Characteristics The KSM137/SL microphones have: an extended frequency response, low self-noise, exceptional reproduction of low-frequency sounds, can withstand high sound pressure levels (SPL), high output level, no crossover distortion, uniform polar response, and superior common mode rejection and suppression of RFI (radio frequency interference). Power Requirements The KSM137 requires phantom power and performs best with a 48 Vdc supply (IEC-268-15/DIN 45 596). It can operate on voltages as low as 11 Vdc, but headroom and sensitivity will be decreased slightly. NOTE: Most modern mixers provide phantom power. Cardioid Instrument Microphone Pair from Shure is 100% original and is available at Edge Electronics. Speak to our expert for booking a live demonstration. After sales customer service is an integral part of our business ethic and is taken very seriously.