Why does my tube amp

I feel very comfortable in my Subaru XV Crosstrek. More comfortable than in Mercedes Benz E350, but I doubt that I can outrun E350 with Subaru XV.

What is the 110 lb gorilla, I mean SS amp, being compared?

Also what kind of music are we talking about? Any electronic rock/pop music with a lot of bass? Or big band or large scale high quality classical recordings? how loud do you listen?

Those are the things that will often push the limits of what a good quality lower power tube amp can do with speakers that represent a tougher load.

I am not saying teh PSBs are a harder load necessarily. I have heard PSBs running off similar power tube amps from ARC and Rogue and the results were quite good.

"More comfortable than in Mercedes Benz E350, but I doubt that I can outrun E350 with Subaru XV."

If its snowing, you can. Quite easily.