What is the best solid state amplifier you have ever heard?


What is the best solid state amplifier you have ever heard?
jozurr
No mention of Jeff Rowland and Dartzeel here so far. I have been thinking about Jeff Rowland  625S2 and Datrzeel 208 or 8550. Any body have experience with these brands compared to Luxman 509 or other brands that are being listed as favorites?