Amplifiers:A Keeper for Life. Do you know of one ?

The Berning ZH270. Simply because it is dependable, has auto biasing, is clear and transparent with no obvious deficiencies, is easy on tubes. Is it the best? No because that is always subject to change depending on speaker load and taste, the reason why folks often change, there is no best. I have heard other amps I really like in given systems but the Berning is just a great design that never fails to amaze me after 8+ years of owning it. I can see no reason to change it, it is too special.

Pass Labs X260.5

If you wanted to sit down and just listen to music, my Bedini 25/25 driving Quad 63's with the dual mono preamp was magical. I'm not sure that I could justify any of my more expensive audio purchases over these.

Pass Labs XA160.5 Class A monoblocks built in heaven a pair at a time.

My first tube amp that very well might be my last
Coincident Frankenstein MKII 300b