I just played a used Top Hat CR and was very impressed at how full and fat it sounded, given it's an EL84 amp. The tone controls perplexed me a bit because when you adjust treble, the bass backs off. I've never toyed with interactive tone controls, so that was a new one for me, but the amp was cool. Plus, I've been REALLY intrigued with the Straub Twisted Triode and wish I could play one in-person. The YouTube clips are OK, but I need to hear if it chimes like Keith and sizzles like Eddie. I suspect it does, but I have no frame of reference for those tubes in the power amp section. This amp has piqued my curiosity like no other... Any way, what do you guys dig and why?