Pure Class-A Amp under $2000 (USED)

Keep checking audio gon and usmart for a nice class A amp, as I told another seeker, ne ready to jump on it if your ready.

those nice class A amps go fast. Keep classe, pass labs in your everyday search, and get when you find t one don’t worry, most used ones will be a good bit affordable, I almost hit “buy” button on a pair of pass labs amps years ago, I waited another day, and a pristine pair of McCormack dna-750’s went up for sale, messaged the seller, am I had made my decision, grabbed the pair with shipping for a steal, 600-650W at 8 Ohm and over 1000W rms at 4 Ohm. Stable below  four Ohms. I then started looking for the LD-2 preamp, and the UDP-1 spinner. 
new price for those 3. Pieces would be 17K plus new, I did a good job with all 3. 
could not be happier, patience is the key to happiness,  and looking few times a day.

good luck!

If you can find a refurbished Sumo The Nine Plus, it's a great sounding Class A amp. I wouldn't buy one though unless it's been thoroughly updated with new caps, etc. by a professional service tech. It does use a cooling fan so be aware of that.

Most “class A” amps are not “pure class A” because they are extremely inefficient and get very hot, even with massive heatsinks. They are basically space heaters. 
 

Even amps like the Pass XA25 (50 watt class A envelope) are not pure Class A for this reason. 
 

Also, it’s my experience that even high efficiency speakers can really benefit from the headroom afforded by higher power, >100WPC amplifiers. It isn’t so evident in a vacuum of course, but power a 90db sensitivity speaker with 50 WPC, then power it with 250 WPC and this truth becomes very evident, especially at lower volumes. Just food for thought. In many cases one is better off using an amp that is heavily biased into class A, for a dozen watts or so. 

Try looking for the Forte brand . Made a Model One that was 50 watts and later upgraded the line to a Model 4 (Fifty Watts ) and then 2 Monoblocks ! Don’t recall that model # . Had the Model 4 loved it but parted with it going up the audio chain ! The thing about a Class A amp is that most of them generate a lot of heat so take that in consideration! Good hunting in this crazy hobby !

I recently sold my Classe Audio DR-8 power amplifier ("Pure Class A", hence the name) built in Canada and designed by David Reich. It served me very, very well with Vancdersteen 2c models and most recently with Magnapan LRS. I replaced it with a Schiit Vidar (not class-A). I am still considering the wisdom of the new v. old amplifier but class-A was very satisfying for me for a very long time.