The Shure KSM353/ED is a premier bidirectional ribbon microphone built around Roswellite – Shure’s shape-memory ribbon material that survives SPL and handling that would destroy traditional foil ribbons, rated to 146 dB. Hand-assembled in the USA from machined steel, silver, gold and aluminium, with a custom double-shielded transformer mounted perpendicular to the ribbon for moving-coil-level output. Supplied with the A300SM ShureLock wire-rope shock mount.
Features
Roswellite shape-memory ribbon – rated to 146 dB SPL
True figure-8 with deep side nulls
Hot output for a ribbon – custom perpendicular transformer
Hand-assembled in the USA
A300SM wire-rope shock mount included
Zip case, polishing cloth and pouch included
For studio vocals, strings, rooms and Blumlein pairs
NoteFeed it a transparent preamp with at least 1 kilohm input impedance to hear what it can do.
Specifications
| Polar pattern | Bidirectional (figure-8) |
| Type | Ribbon (Roswellite) |
| Frequency response | 30 Hz – 15 kHz |
| Max SPL | 146 dB |
| Phantom | Not required (phantom-safe) |
| Model | KSM353/ED |





