Clayton Audio is a St. Louis based company that specializes in Class A amplifiers. Created by a retired IBM engineer, Clayton Audio amps use Motorola bipolar transistor semiconductors. Clayton Audio claims to conservatively rate their speakers, and say they will double their power output into 4 ohms, and continue to increase output down to 1 ohm.

Notable Clayton Audio products include:

Clayton Audio S40 stereo amp
Clayton Audio M200 monoblocks
Clayton Audio M2000 monoblocks.

Similar companies to Clayton Audio are Simaudio, Boulder, and Krell.

Clayton Audio products can be found at Jam'n Audio and TRI Audio Marketing.