Before
One Puresound A30 selling for £1100 in the UK and offering superlative performance at this price point. It is fitted with Electro Harmonics 6550 main valves with Chinese stock driver and rectifier valves.
After
The amp has been more than breathed on by our resident engineer Anthony TD. The circuitry has been reconfigured to give more ooomph, better dynamics, transparency and finesse, the preamp circuitry has been ripped out to make it a power amp only and circuit paths have been shortened. All of the valves have been replaced. The main output valves are Cryogenically treated Svetlana KT88s, the driver valves are rare-as-rockinghorse-shit military spec Philips JAN 6SN7 and the rectifiers are Mullard GZ34s. It has also been named to commemorate this forum: