The amps I disliked the most are some of the older amps. The Kustom 100 was very bland, and I played through a couple of Trace stacks that had so much grit they were indistinct sounding. Iive also played through an Ampeg SVT that was too mushy sounding for my tastes. I currently own a Hartke 5000 and it's bland to my ears as well - I'm constantly tweaking the tone controls trying to find good clean wide spectrum power that isn't harsh. For lower volume gigs, I really like my polytone pro, but it is complicated with 2 bass controls, 2 mid controls, 2 treble controls, plus multiple switches for boost (bass and treble) as well as 4 volume controls. BUt once you figure it out, it has an amazing variety of tones - well at least much more so than my Hartke or old Sunn Coliseum.