Thanks, Nick, for the clarification. Hopefully Mr Dunn has learned something now, particularly as he's always respected and considered you as someone who knows what he's talking about, regarding electronics. He's so pig-headed though, that no doubt he'll not accept that he is WRONG - instead he'll continue to claim in vain that everyone else is wrong, bar him!

The fact is that not one single person, who understands and builds electronics, has come to his defence and sided with his argument, which for me, says it all.....

Quite simply, if he continues spouting his misguided tosh, in reference to Class A valve amps, then he'll only make himself look even more like a fool. There's a time to hold your hands up and admit you've made a mistake and are wrong, whilst you still have some technical credibility left - and for Richard Dunn, that time is now...!

Marco.