Shure SM58

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The Shure SM58 microphone

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.[1][2][3] The SM58 and its sibling, the Shure SM57, are the best-selling microphones in the world.[4] The SM stands for Studio Microphone.[5]

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.


Robert Lockwood, Jr using an SM58
Dynamic[6] (moving coil)
Frequency Response
50 to 15,000 Hz[6]
Polar Pattern
Cardioid,[6] 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[6]
Rated impedance is 150 ohms (300 ohms actual) for connection to microphone inputs rated low impedance[6]
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3[6]
Three-pin male XLR[6]
Net Weight
298 grams (10.5 oz)[6]


  • In 2008, for the second year running, the SM58 microphone won the MI Pro Retail Survey "Best Live Microphone" award.[7]
  • In 2011, Acoustic Guitar magazine honored the SM58 with a Gold Medal in the Player's Choice Awards.[8]

See also[edit]


  1. ^ Live Sound International, September/October 2002. Real World: Wired Vocal Microphones
  2. ^ Miller, Peter L. (2001). Speaking Skills for Every Occasion. Blake's Guides. Pascal Press. p. 30. ISBN 1741250463. 
  3. ^ Morris, Tee; Tomasi, Chuck; Terra, Evo (2008). Podcasting For Dummies (2 ed.). John Wiley & Sons. p. 36. ISBN 047027557X. 
  4. ^ Paul Stamler, Shure SM57 Impedance Modification, Recording Magazine, retrieved 2014-04-20 
  5. ^ History of Shure Incorporated
  6. ^ a b c d e f g h Product Specifications (PDF), Shure, retrieved 2012-10-06 
  7. ^
  8. ^ Gerken, Teja. "Acoustic Guitar Player's Choice Awards 2011 - Shure SM58". Acoustic Guitar. String Letter Publishing. Retrieved August 19, 2012. 

External links[edit]