Williams Audio Valve DAC
Williams Audio Dac. Built by Duncan/tubehunter.
Original description from when Duncan sold it.
'Output is slightly higher than the standard 2volts around 4/5volts, so will drive a power amp direct but is still usable with a preamp.
Wolfson WM8740 DAC
DIR9001 digital receiver
PCM2902 USB interface
AM26C32 for SPDIF
Inputs USB, Optical or SPDIF
Input signal source scanned and selected automatically
Power supply for analog, digital and driver section are separate and independent
Double regulated before board, then step up and third stage regulation on board.
Valve output stage is SRPP using the most excellent 6N6P tube.
Input capacitors are Mundorf supreme and output capacitors are AmpOhm.
Two 6amp mains Transformers supply Dac regulators and stepped up again to provide HT for valves.
Smoothing is by quality polypropylene capacitors and choke with kiwarme resistors.
Case is solid beech sides with 5mm clear acrylic top/back and base. The top slides off for access. There is a small crack in back panel to the right hand side which isn't a problem.
The front is a sandwich of 10mm clear and 3mm transparent blue.
This thing rocks!'
Condition is used- ie minor marks and the perspex shows some sign of being over the top of a hot valve. Not really visable in use.
To be fair, I bought this to use for a few weeks whilst I had my Chevron repaired/ upgraded but Ive really enjoyed it and I have a feeling it might outperform my Chevron (which comes home tomorrrow) but I love my chevron set up, so its staying put.
It's a heavy unit and comes with a couple of spare valves. Doubt much would touch this for the money.
£200. Prefer not to post. Located in stoke on trent