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Innovative Roswellite Ribbon Element

Unlike traditional ribbon microphones the Shure KSM353/ED includes a Roswellite ribbon element which not only is stronger than traditional elements but can withstand higher sound pressure levels. The Roswellite ribbon element has a high tensile strength and shape memory to provide advanced resilience even at extreme sound pressure levels.

Patended Ribbon Motor

Featuring a patented custom ribbon motor assembly the Shure KSM353 tailors bass response without attenuating the overall output for full low and mid ranges, and superior upper range presence from a rising frequency response.

Robust All Metal Construction

With a sleek chrome body and grille the Shure KSM353 not only sounds professional but looks it too. The all metal construction extends right down to the double shielded transformer which additionally helps to reduce radio frequency and magnetic interference.



  • Bi-directional polar pattern delivers premium symmetrical audio 
  • Revolutionary Roswellite proprietary ribbon material
  • Roswellite ribbon provides high tensile strength, toughness and shape memory
  • Patented ribbon motor tailors bass response without attenuating overall output
  • Double shielded full size transformer minimizes signal loss and maximizes output
  • Suitable for vocal, acoustic instruments and concert hall applications
  • Legendary sure quality and robust metal construction
  • ShureLock wire rope shock mount for secure mounting with impressive isolation
  • Includes locking aluminium flight case


  • Transducer Type: Roswellite Ribbon
  • Frequency Response: 30Hz – 15,000Hz
  • Polar Pattern: Bidirectional
  • Output Impedance: Transformer, Balanced, Actual 330 Ohms
  • SPL (Max): 146 dB
  • Sensitivity: -53.5 dBV/Pa (2.11 mV/Pa)
  • Finish: Black with Red Grille
  • Height: 15.75 cm / 6.2”
  • Diameter: 4.83 cm / 1.9”
  • Weight: 633g
  • Includes: Shock Mount, Aluminium Flight Case, Polishing Cloth, Velveteen Pouch