Budget/value SS power amp recommendation


Hello all would appreciate any recommendations for a budget solid state power amp for a lightly used 3rd system to pair with some tube preamps. Budget is less than $500. New, used , cosmetics irrelevant. Initial thoughts are the following but don’t know if they obtainable on this budget.  

brston 2b
older belles model
used AVA

Any thoughts or suggestions welcome. Would love to find a sleeper under the radar model or something discounted if it’s cosemticlaly challenged . Thanks
kbuzz
Kinergetics Research has a few amps under $500.  They are out of business and a good value sound per dollar. 
I bought an old Marshall Leach Heathkit amp for $250.  I am rebuilding it now,  but it is surprisingly nice sounding.  
Sumo has the Polaris, they run about $300
Rotel, Parasound or Adcom from the early 80's can all be had easily under $500...Adcom 535 is around $200.  
I'm sure a couple of Chinese amps are decent,  Here is a quad knock off by Douk audio:  https://www.ebay.com/itm/Nobsound-Classic-Power-Amplifier-Audiophile-Hi-Fi-Dual-Channel-Stereo-Amp-1...

kbuzz:

Check out the specs:

https://emotiva.com/products/a-300

Its new, its available, and its covered by warranty. Excellent reviews.

Ping me.  I am just getting ready to list an amp that fits your needs perfectly.  Teeshot
Rega power amps are low-cost, sound like music to me and often pair well with tube preamps.
A couple of Outlaw M-200 monoblocks would do nicely, and should cost about $400 on the used market.  Plenty of power, transparent, and neutral.

The later Adcom amps (5300, 5400, etc) are also very good and can be purchase for perhaps half of that.