From tubes back to SS?

From my experience, all of the 6SN7 tubes I've tried had hiss.

They do, but you probably just had bad luck. We use 6SN7s in everything we make and no worries playing them on high sensitivity loudspeakers. My speakers at home are 97.5dB 1 watt/1 meter, and no hiss.

@prof I had the same experience when I tried to use an SUT instead of going direct-in on my phono setup. The SUT was certainly quiet, but I found myself not playing the stereo anymore. When I got the SUT out of the system, right away my interest came back.

I never got to hear that one except at a CES where I met Mr. Bedini. He was giving out a publication he created about free energy.
And of course earlier I meant 'kid' when I wrote 'kit'.... :)

I started with tubes when I was a kit, and literally pulled gear from dumpsters and rebuilt it because I had no money.
Friends on mine in high school were all like- 'when are you going to get into the space age?' as if all aerospace gear was somehow all transistor...
That eventually happened. But on my old Altec corner horns and also on my Fulton 80s the solid state was less fulfilling.  So I gunned the solid state electronic crossover and the SWTP Tiger and went to all tubes.

Then I figured out how to do OTLs and I was toast. I did try some solid state amps- the Electron Kinergetics Eagle, BEL 101, Bryston, Pass Labs but none of them seemed to make bass right and the highs were less involving. So I'm still doing tubes...