Drubin, I agree with your opinion of the CJ amps. Just because an amp has tubes does not mean it is going to be romantic, sloppy bass, warm, rich with a softing in the treble. I sometimes get the feeling many believe this to be the nature of tubes. I have heard tube based systems that I could not tell if it were tube or SS except for the 3D effect and spatial qualities mentioned by others. The comments and comparisons Jcbtubes talks of were done in my system. There is no way the Pass X350 sounds like tubes. Maybe I should say in my system the Pass could not pass off as a tube sounding amp. If possible take a listen to a whytech, Wavac, Viva or a good OTL. You will soon understand the wonderful world of tubes. You will soon be following the 12 step program of the tubaholic. IMO, if you want to mix SS and tubes (I am not sure why you would) use a tube amp and a SS preamp. Just another misguided opinion. Wish you the best in your hunt for realism.