AD Audio hand builds high quality valve amplifiers and Dacs in South West London. I now offer the Satchmo 3, an updated version of the original Satchmo with much improved performance. This is available as a line only preamp or with a world class phono stage either LCR or pseudo LCR based.
AD Audio produces a version of the DDDac using its own custom built power supplies. we and our customers believe that these DDDacs outperform the standard kit parts available on line. AD Audio has operated an upgrading and repair business and details, projects and testimonies can be found here
DDDACs are available with custom tube output stages, reclockers or any other spec you care to have.
I also produce a DAC based on the ESS Sabre 9038 pro, with remote control volume and tube output stage.
I now build power amps to order and have recently completed some Radford sta100s built as monoblocks and some 2A3 /6B4G monoblocks rather than sticking to one single design.
AD Audio Handbuilt Valve Amplifiers and Dacs 