Vintage Onkyo
I have a near-complete set of Onkyo's TX-nn00 Mk II seri3es of receivers from the 1978-1982 period: TX-2500 Mk II, TX-4500 Mk II, TX-6500 Mk II, and TX-8500 Mk II; i.e., all but the TX-1500 Mk II. (May pick one up someday; no hurry.)
[I also have an Onkyo TA-630D cassette deck that plays beautifully, and an Onkyo EQ-35 Integra Equalizer. The EQ-35 is occasionally used to custom-trim one album or another. Mostly I just use it to fine-tune the volume level.]
All my Onkyo receivers sound great. I am slowly replacing the electrolytics in all of them on GP.
All have DC offsets close to zero. They were designed to turn on quietly and they do just that. No thumps; I have to listen closely to hear the relays click when I turn on the power.
A few have one or two burnt-out lamps; replacing them should not be too tough.
Any of them will drive two pairs of 8-Ohm speakers to "loud as you wish" levels in my 7.5' H X 14" W X 22' L listening room. :thmbsp:
(Heavy wall-to-wall carpet, soundproof ceiling tiles, heavy upholstered furniture)
Prolonged listening at fairly high volume levels does not generate excessive warmth.
All sound great over headphones, too.
The tuner sections can pull in FM Stereo from 70 miles away.
The controls all work smoothly and perform their expected functions---no clicking, snapping, popping, scratching, whistling, or any other unwanted noises.
In short, these receivers have been cranking away for roughly three decades and show every sign of being good for another three decades. :thmbsp:
I plan to let our three children inherit them.