The KSM353 is a premium bidirectional ribbon microphone crafted for pristine audio in studio and concert hall applications. It is hand-assembled from state-of-the art transducers, transformers and metals as the pinnacle of Shure quality for prestigious vocal and acoustic performances.

Proprietary Roswellite® ribbon technology provides revolutionary ribbon resilience and durability under extreme conditions. The Roswellite ribbon material replaces traditional foil ribbons with high tensile strength, toughness, and shape memory that provides superior resilience at extreme sound pressure levels (SPLs).

Product Features

• Bi-directional polar pattern delivers premier, completely symmetrical audio with superior off-axis rejection
• Revolutionary Roswellite® proprietary ribbon material replaces traditional foil ribbons with high-tensile strength, toughness, and shape memory that provides superior resilience at extreme SPLs
• Patented custom ribbon motor assembly tailors bass response without attenuating the overall output for full low and mid ranges, and superior upper range presence from a rising frequency response
• Double-shielded matched full-sized transformer minimizes signal loss and maximizes output while reducing magnetic and RF interference from 90-degree placement, offset relative to the ribbon
• 146 dB SPL across 30 – 15,000 Hz frequency response ideal for capturing fast transients in vocals, acoustic instruments, and concert halls
• Hand-assembly of machined steel, silver, gold, and aluminium materials, and housed in a pure stainless steel casing
• ShureLock® wire rope shock mount for secure thread-locked mounting with maximum isolation
• Locking aluminium flight case for storage when not in use

Product Specifications

• Transducer Type: Roswellite® Ribbon
• Frequency Response: 30Hz – 15,000Hz
• Directional Polar Pattern: Bidirectional
• Output Impedance: Transformer, balanced, actual 330 Ω
• Polarity: Positive pressure on front side of ribbon produces positive voltage on pin 2 relative to pin 3, pin 1 ground
• Sensitivity (at 1 kHz, open circuit voltage): -53.5 dBV/Pa (2.11 mV/Pa)
• Dimensions & Weight:
  • Diameter: 4.83 cm (1.9 in)
  • Height: 15.75 cm (6.2 in)
  • Weight: 633 g (1.4 lbs)
  • Weight: 950 g (2.11 lbs) w/ Shock mount
• Max SPL: 146 dB
• Connector: Three pin professional audio (XLR) male

What's in the Box?

• 1 x A300SM ShureLock® Wire Rope Shock Mount
• 1 x AK353C Zippered Carrying Case
• 1 x A300PC Polishing Cloth
• 1 x A353VB Velveteen Pouch