Chuck: I have it on authority from somebody at CJ that Lew Johnson personally considers the new solid-state Premier 350 to be CJ's best sounding amplifier ever, period - tubes or no! Haven't heard it myself though.
BTW Chiho, if you think your DNA-125 lacks some detail and refinement, I'd ask if you've upgraded the power cord, and if you leave the amp permanently powered-on. If you do both of those things, these qualities will improve markedly. I haven't compared the 125 to a Premier 11a, but can tell you that it beat an MV-55 in my system in terms of detail (but so would an 11a, and the 125 still doesn't sound like tubes of course, though it sounds like very respectable SS).