Older PURE CLASS-A Amplifiers

Here's to keeping the thread alive. Good for the search engine and anyone looking for good old class A amps.

The smaller Bedini's like the 45/45 and 25/25 are underated. I have a 45 that puts out sweet music to my Maggie 3.6's.

Jimmyblues, my 45/45 has a less than 100 ser #. When I spoke to John about it and mentioned I liked SET amps, he said mine was single ended and no wonder I liked it so much. Is this what you meant by the "real Bedini"?

Hello,

Is it necessary to change the caps after many years of intensive use on a Classe Audio DR3B? What kind of caps am I supposed to buy?

Regards
Vesaas96

threshold sa3, or any ot the pass aleph amps, if they have enough can power for you. one of the biggest secrets in hifi is that some of these older amps not only compete with the new stuff, they are actually much better than what is out there today. goodluck chris

hi. another thing to add is anything made by nelson pass. the guy is really cool. I called pass labs once to talk to someone about my older threshold amp and pass himself took the call, I told him upfront that I did not have the funds for one of his newer amps, but he still talked to me for over a half hour about his older threshold and aleph amps. he gave me lots of good advise. good luck, chris

Is it necessary to change the caps after many years of intensive use on a Classe Audio DR3B?

Is it necessary? No, unless you're having audible problems (muddy, veiled, undetailed sound).

Electrolytic caps deteriorate with time & heat & other factors -- a major factor being non-usage. You have used your amp, so deterioration is less than in other cases.

Replace with caps of same value -- or even adding coupling caps... BUT leave this stuff to a qualified tech.