Using Musical Paradise SET amp with Klipsch Cornwall IV

Hi. Good Morning. 
   Can any of my comrades herein AUDIOGON testify to these tube amps, and give me any a vise how the sound is?

I’m also interested on which tubes? 

I am also excited about the power a KT 88 would provide. Will this type amplifier sound better than my CARY CAD – 808 rocket 88, which already runs KT 88?

Are these SET amps? I also have focal drop headphones and I think that headphone jack would sound better than my drop AAA 789 solid-state headphone amp?

thank you