Unified Theory

Unified Theory designs and builds precision tonearms in the USA. The company was founded by Greg Viggiano and is dedicated to tonearm design and engineering. Each design starts from first principles and is developed through research, iterative prototyping and objective measurement.

The UA-101 is a stabilized unipivot tonearm with a patented system for adjusting azimuth while a record is playing. It is CNC machined with tungsten and titanium components, and its styling marks the 50th anniversary of the Micro Seiki MA-505 tonearm, introduced in 1976. Arm lengths of 10 and 12 inches are available as options.

Unified Theory is available at Alma West in San Diego and Alma East in Sterling, Virginia.