Pure Class-A Amp under $2000 (USED)

-50 on the Schitt Aegir

I had a pair and they couldn't handle the LSA Statement 10 which is a 83db 10ohm bookshelf nor a pair of Fyne F501 which is 90db 8ohm. Both amps would shut off at any music past 88db volume. Both speakers worked perfectly on my Sony surround receiver at volumes well past 88db. 

Per Stereophiles measurements and ASRs' (49w @1% THD and 23w @.5% THD) Schiit severely lied on their published specs for mono rating. When confronted with the above publications and when I requested my money back, I got no response.

Here's the tests 

+5 Schiit Aegir,

30years ago I owned a Threshold 400A. For 30 years now I kick myself for letting it go. They come up now and again here and elsewhere, recapped and tested within your budget. Loved that amp.

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.