A short note to all:-
I was not completely happy with my old page on re-forming Quad-II amps for improved performance.
So I have now re-edited all schematics and removed much BS and added more possibly useful stuff over the last month.
http://www.turneraudio.com.au/quad2powerampmods.htm
I consider myself well pre-battered by Quad-II zealotistas wielding baseball bats so no more damage can be done to me, so please, provide your own vomit bucket when you read my website pages :-)
Patrick Turner.