I am selling a Ming-Da 34A valve integrated amp that has been upgraded with the following. Original power supply replaced with a Welbourne Labs power supply module.(no soft wooly bass here) Amp reconfigured to run in Triode or Ultra Linear mode(switchable from front panel) All coupling caps changed to high quality Mundorf Zn types. Nos Mullard and Mazda preamp valves, Golden Dragon output valves. This is an excellent and affordable way into valve amps and is a match for the Icon Audio Streeo 40 which is based on the Minger. The amp is currently at Chevron Audio( who did the mods) being checked over and converted back to an integrated as I was using it as a power amp until recently. Asking £275 or sensible offer