Back in '89/'90 when I was working in home audio, it was all about Bose and Onkyo - been out of that game since then but still own my Techniques prologic components that work great to this day - Was no guru back then and I'm still far from saavy, but I've been involved with guitar equip these last 20 yrs and home audio amps should be rated the same as instrument amps - I use a Line6 100w tube amp for my stage gear, but have played through a 20w Orange amp that blew mine to dust......huge difference with class A amps vs. the rest. Big bucks for sure, but seems we used get what we paid for though:( Todays market just wants more money for R&D work and technological advancements, but give us junk internals/components......its a lose, win, lose??