Re: Bogner Ecstacy class A/AB? (Gearjonser/other owners)
I like the fact that mine has that feature, but I don't use it often.
It really is best for the clean channel and possibly blue channel in plexi mode. What you'll notice is a slight drop in volume and a lowering of the headroom, but it gets a little squishier sounding. I doubt you'd like it's effect on the blue channel in normal mode or the red channel in normal mode, so it's probably not worth $250 to you.
What I use most is the halfpower and mixable FX loop. the XTC has a great mixable FX loop, so it's easy to dial the effect in perfectly. Plus, the footswitch allows you to bypass it.