You can say I went back to Pass after owning Threshold more than 40 years ago. In between I've owned many different SS and Tube amps. The switch back to Pass was originally intended to downsize somewhat from tube separates. I had the Int 30 first and now have the Int 60. To these old ears, nothing has sounded as good as the Pass.
Switching to solid state amp?
I have had tube amps for the past 20+ years and have totally enjoyed their sound in my system. I am thinking of trying a solid state amp. Pass Labs comes to mind but would be open to anyone who made the switch, was happy and what brand worked for you. Btw I will still be using a tube preamp. Who has been happy with the switch?