SM57 Instrument Microphone The legendary Shure SM57 microphone is exceptional for musical instrument pickup and vocals. With its bright, clean sound and contoured frequency response, the SM57 is ideal for live sound reinforcement and recording. It has an extremely effective cardioid pickup pattern which isolates the main sound source while minimizing background noise. In the studio, it is excellent for recording drums, guitar, and woodwinds. The SM57’s outstanding performance, legendary reliability, and diversity of application make this "workhorse" the choice of performers, producers, and sound engineers worldwide. SM57-LC : Without Cable Contoured frequency response for clean, instrumental reproduction and rich vocal pickup Professional-quality reproduction for drum, percussion, and instrument amplifier miking Uniform cardioid pickup pattern isolates the main sound source while reducing background noise Pneumatic shock-mount system cuts down handling noise Extremely durable under the heaviest use Frequency response: 40 to 15,000 Hz Replacement cartridge: R57 Polar Pattern Unidirectional (cardioid), rotationally symmetrical about microphone axis, uniform with frequency. Sensitivity (at 1,000 Hz) Open Circuit Voltage: -56.0 dBV/Pa* (1.6 mV) *(1 Pa = 94 dB SPL) Impedance Rated impedance is 150 ohms (310 ohms actual) for connection to microphone inputs rated low impedance. Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3. Connector Three-pin professional audio connector (male XLR type). Case Dark gray, enamel-painted, die-cast steel with a polycarbonate grille and a stainless steel screen. Dimensions See User Guide. Net Weight (without cable) 284 grams (10 oz) Type Dynamic Frequency Response 40 to 15,000 Hz