Amp upgrade from Ayre V-5xe

reports of the non 20 version shutting down on heat protection.

Well, that’s compelling evidence of a problem that needed to be fixed but the Twenty version is so much more than addressing excess heat. And it’s obvious on face value that they did not have the original and the Twenty versions to compare when they introduced the series. It appears that the Twenty came at a time of rapid advances in their circuit design. Being upgradeable, why wait if a substantial performance gain can be had? IIRC, the R series was soon thereafter updated to Twenty series because the “affordable” 5s had nearly closed the gap sonically.  

thyname, there is a used VX-5 twenty for sale on audigon as we speak.

beetlemania, the Diamond output stage exist since the 1960s and was patented by professor H. Baker of MIT. Ayre did not invent anything.

They suposedly perfected it in the first X5 series , and then they supposedly perfected it again in the 20 version.....well because it seems it was not perfected good enough in the first version! 🙄 .........

Ayre has been candid about the origins of the diamond circuit. Not sure your point about “perfected” but my snarkmeter is ringing.

@techno_dude : I bought my VX-5 Twenty a while back. I updated this thread then. I am very happy with the purchase 

Ayre is good
ayre dartzeel ypsilon naim have lower negative feedback

again do not change ayre to pass labs