@lula
Nothing will or can beat a good/great tube amp. My main goal for finding the perfect (for me) solid state amp (SIT3 is my choice with Luxman 590 AXII a close second) is because I play my system 12-18 hours a day when on. Tubes would worry me a little. I am not opposed to swapping around sometimes.
The Velvet E2 non SE is closer to the SIT3 than the SE version. Sometimes I wish I still had the non SE version for my Avantgarde. Only in comparison to the SE version, the non SE is not quite as clean on top but it’s a little sweeter/warmer and a little more "musical" at the expense of a little detail.