@greginnh what do you feel you're missing from your Esoteric? Did a quick google search and that looks like a pretty special integrated. I'm a tube guy all the way but have a certain fondness for Japanese SS from companies like Esoteric and Accuphase. I would think you would have to spend quite a lot to better the performance you are getting now. Also as others have said perhaps not the most tube friendly speakers. Perhaps new speakers are the answer rather than new amplification? Just a thought.
SS preamp with tube amp
I toying with the idea of using my Esoteric integrated as a preamp to pair up with a tube amp. I'm wondering if I will get the "tube sound" with this set up.