Re: Aphex Xciter pedals--anyone tried these?
I haven't used the Aphex but I used to use a BBE 482 Sonic Maximizer in my guitar rig and it sounded great; be sure to run it last in your signal chain before the power amp. I don't use the BBE now because it smoothed out my tone too much. I like my Marshall to be gritty and less hi-fi sounding so I removed the BBE from my loop. I'm planning to migrate back to rack gear in the near future and the BBE will resume it's residency in my rig when I do so.
As a side note you can also change your frequency response with the BBE. You can fill out the bottom end (almost like having a depth knob) or you can dial in a lot of top end sizzle. For an example of this, listen to Dave Mustaine's sound on Rust in Peace. The first guitar in the intro to "Holy Wars" is Dave.