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The Shure SM58 is a professional cardioid dynamic microphone, commonly used in live vocal applications. Produced since 1966 by Shure Incorporated, it has built a strong reputation among musicians for its durability and sound, and nearly half a century later it is still considered the industry standard for live vocal performance microphones.〔''Live Sound International'', September/October 2002. (Real World: ''Wired Vocal Microphones'' )〕 The SM58 and its sibling, the Shure SM57, are the best-selling microphones in the world. The SM stands for Studio Microphone.〔(History of Shure Incorporated )〕 Like all directional microphones, the SM58 is subject to proximity effect, a low frequency boost when used close to the source. The cardioid response reduces pickup from the side and rear, helping to avoid feedback onstage. There are wired (with and without on/off switch) and wireless versions. The wired version provides balanced audio through a male XLR connector. The SM58 uses an internal shock mount to reduce handling noise. ==Specifications== ;Type: Dynamic〔 (moving coil) ;Frequency Response: 50 to 15,000 Hz ;Polar Pattern: Cardioid,〔 rotationally symmetrical about microphone axis, uniform with frequency ;Sensitivity (at 1,000 Hz Open Circuit Voltage): -54.5 dBV/Pa (1.85 mV); 1 Pa = 94 dB SPL〔 ;Impedance: Rated impedance is 150 ohms (300 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 male XLR〔 ;Net Weight: 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Shure SM58」の詳細全文を読む スポンサード リンク
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