DS Audio
Discover the worlds only optical cartridge Just launched in the UK, Japanese DS Audios revolutionary DS-W1 is the worlds only optical cartridge. Unlike previous non-contact systems which used lasers to read record grooves, DS Audios design is a pure analogue contact system that uses a conventional stylus and cantilever. Instead of relying on electromagnetic induction, it uses an LED to detect stylus vibration. This completely eliminates the electromagnetic frictional force that is a fact of life in all MM and MC cartridge designs. DS Audio part of the Digital Stream Corporation who co-created (with Microsoft) the optical mouse.