I am just curious what this will do. I own a Hartke B120 combo amp and a 1998 Epic 4 string. I can get this for $75 bucks and was wondering if I can use this with my Hartke combo and what exactly it does?

I'm not up tonight for describing the magic this thing does, or whether it might be useful to you. For $75, just buy it now without delay. I believe the new price is $795, so if it doesn't prove interesting to you (and assuming it's good shape), you should be able to unload it at a profit in a matter of minutes.
 
There's a high level description here:
http://www.alembicguitars.net/prod/sf2.html

DAN ...
YOU CAN BUY A SF-2 FOR 75$ ?!!!?!?!?!
 
***sigh***
 
Some guys have all the luck.
Brother Dan ...BUY IT. DO IT YESTERDAY!
 
I also had the luck to find one 2nd hand over here in Europe, but it was still 500$! New they are about 1000$ over here.
I don't have it yet.
When I do I'll need the combined experience of Brothers Bob, Joey, Martin, Brian, Michael to master it I guess. It will also take time for me to sit down and tweak around but I WILL MASTER IT!
 
Good luck man!
 
Paul