I haven't played the XL but I own the 50.

It can do metal pretty well.

I suggest you try something else, though, if you have the cash.
I played the AD15 (XL) yesterday at my local store, (considering buying it actually) it sounded pretty good. I didn't blare it, but I think if turned up loud enough it would sound obnoxiously metal. I'm pretty sure the regular AD15 is more versatile, because there is less obvious gain/distortion/overdrive, but the XL is definitely heavier. Other than the added gain, they're about the same amp. The only reason it's not a sure buy for me, is because I've heard modelling/SS amps don't take to additional effects [pedals] well, and I'm pretty sure I'd want some good pedals later on.
Maximum volume yields maximum goats.
Last edited by Quinlan at Nov 1, 2008,