Quote Originally Posted by User211 View Post
Barry don't you swap your alternatives in every now and then?

If not, why not?

FWIW this M-60 fix may not be fast. It may span over months. However, if I get some time off, expect rapid attention and a quick sort out. I haven't been giving it much time, really. An hour or two max per week.
No, not now. I used to be a bit of an amplifier 'swapper', even to the extent of trying out classic amplifiers such as the Radford STA-15 III, or the Electrocompaniet "The Two Channel Audio Amplifier", both of which, in their own way, sounded excellent with my Quad 57 ESLs.

These days however, I'm quite happy to leave my Quad 510s in situ with a set of 'monoblocked' and upgraded (to Keith Snook Level 3) Quad 405s, and Mark Levinson ML-2 amps in reserve should the 510s develop a problem.