Class A amplifier alternative?

Used quality amps are something to consider but beware once you start getting over 15 years or so the capacitors start drying out ,especially output caps ,

rebuilding too can give you are great amp like the Older Threshold Stasis class A amps for example , BAT, Classe, Coda ,Bryston ,Mark Levinson made in              North America check both Audiogon, as well as  U.S  audio mart.

You may also want to check out underwood Wally ,and his new GAN amp

under $2500, or new  Anthem Bipolor amp $2500 

I use a Vincent SP331 MK, 150 watts but with first 10 in class A.  You will almost never use more than 10 watts.  Great amplifier.

I just had a really good outcome with running my Cambridge Audio Azure 851w's (A/B) in a Bi-amp dual mono setting (200/350) and you could go bridged mono blocks (500/800), though I hear the 800w is generous. Best part is you can find them for $700-900 each used and weigh 40lbs each (80lbs still kinda heavy).

Extremely happy with them and I'm not even pushing their power or my wallet!

Happy hunting!

Depending on the efficiency of your speakers, that much power is a waste of electricity. Especially in class A which runs at full power regardless of volume level. (Hence the extreme heat) A 90 Db efficient speaker will play at shouting levels with a 1 watt input from 1 meter! To fill a LARGE room, 40 watts would do it.

I understand  that we want what we want. I'm currently running a Rogue Audio Dragon amp (300/500 watts) My Tekton DI's are using a fraction of the power with no sterile or thin sound at all. Matching your components is key. It can be frustrating, and expensive!

I hope this helps and that you find the sound that you're looking for!