Real name: Ian Cooper

Mastering Engineer from the UK.

Started at Pye Studios in 1971.
When credited as 'X' combined with prefixed symbols (△, ♢ or ✳), please use his Alias X.
Worked at Utopia Studios from 1976.
Started up The Town House Studios cutting rooms in 1979, and, in 1985, building the world's first independent cutting room with DMM disk cutting.
In 1993, together with Tim Young and Tony Cousins, he built the Metropolis Mastering Studios, London, UK.

Retired at the end of 2013.