My suggestion would be to get an Ariane, and get and RCF 1 or 2 card, instead. There are better solutions out there in 2009 than the XT2.
The Ariane Sequel has a preset that sounds similar to the old Prisms. I believe it is called "stereo bigger." There is a description in the manual.
Thats not true.. It sounds far from the original prisms. It comes close to the crappy digital Prizm version Gentner made, but thats it.
The decision point to compress, expand or do notthin is FAR better than the ariane in my opinion.
I would choose prisms over the Ariane. But i would prefer the XT2