Best monoblock amps for $2000 used

I'd be cautious about wired VTA products.

As built by VTA, the M-125's were very noisy, but can be quietened quite a bit. In my case, almost 40db.

Complete instructions:
http://ielogical.com/Audio/VTA_M-125.php

Dayens Ampino monoblocks - about as good as it gets for the $$ and they’re incredible quality 

Unless you have a specific reason for 2 amps, I highly recommend a LSA Voyager GaN 350 which is dual mono in one chassis. They come up FS occasionally

Another shameless plug for Odyssey!!

Have a Kismet amp and will never part with it!!

Call him in Klaus in the evening ....

I came across Classe a lot, never heard them but all the reviews I have read were very positive. As I am experimenting, tweaking, I came to believe that a tube + SS combination may be best for my ears and monoblocks is the way to go. (Tube pre mono SS) One can only dream :)