Power Amplifiers

I dunno if it's classic but it makes my DQ10's sing....Proton D540...around '85 I think.

 @roberjermanA friend of mine had a the Ampzilla Amp
sound great with Infinity RS Kappa 8s

Threshold SA/4e, 350e, S500 w/optical bias and a sweet Jon Soderberg upgraded SA/3.

I’m using 2 mono-block tube amps I built from schematics published in 1958, from books my father had and was going to throw away. Switch Mode Power Supplies. Modern passive components. All RCA tubes. The finest amps I’ve heard. Class A 45 Watts/channel. Tube phono preamps.

The only heat comes from the filaments. Granite bases.

@richopp I think you are in the 80’s with a Hafler 500
gr8 amp