+1 for the comment by Soix on the tube preamp plus solid state power amp; when I switched from all solid state, then to all tube, and then to tube preamp with solid state monobloc power amps, I achieved a significantly higher level of sound quality. I think I have hit near end state for the amount I have spent on my system that has both digital and analog sources. Even my non-audiophile wife—who loves good music—commented on the realism … achieved with the tube/solid state combination.