OMA is Oswaldsmill Audio.

A different approach.
A reverence for materials and design. An understanding of the history of audio.
A commitment to achieving the finest possible sound.

OMA designs and builds vacuum tube amplification, from the phonostage to massive power amplifiers. OMA's master craftsmen create speakers from solid hardwoods that have no peer. For vinyl playback OMA makes turntables and custom slate plinths.