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KSM353 Premier Bi-directional Ribbon Microphone
med Roswellite Ribbon Technology

The KSM353 is a premium bi-directional ribbon microphone crafted for pristine audio in studio and concert hall applications. Proprietary Roswellite technology provides revolutionary ribbon resilience and durability under extreme conditions. Hand assembled in the USA from state-of-the art transducers, transformers and metals as the pinnacle of Shure quality for prestigious vocal and acoustic performances.
The high-tensile strength, toughness and shape memory of Roswellite ribbon material replaces traditional foil ribbons for superior resilience at extreme SPLs.
With unique technology and application features, alongside superior materials and construction, Shure KSM Ribbon Microphones are the necessary choice for the world's most accomplished studio and live performances.

• 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
• 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
• Legendary Shure quality and superior construction from hand-assembly of machined steel, silver, gold and aluminum materials, and housed in a pure stainless steel casing
• Spring-loaded suspension shock mount for flexible, fully-isolated stand mounting
• Upright protective wood case included for storage when not in use

Transducer Type
Roswellite Ribbon
Frequency Response
30 Hz - 15,000 Hz
Directional Polar Pattern
Bidirectional
Output Impedance
Transformer, balanced, actual 270 O

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: 4.8 cm (1.9 in)
Height: 15.7 cm (6.2 in)
Weight: 633 g (1.4 lbs)
Weight: 833 g (1.84 lbs) w/shock mount
Max SPL
146 dB
Connector
Three pin professional audio (XLR) male

Not included accessories:

A353SM Spring-Loaded Suspension Shock Mount
Spring-loaded suspension shock mount for use with the KSM353