xmortumx, you do not need a power amp for your purposes. Just run the mp-1 directly into your soundcard and then run that signal through one of the guitarhacks impulses like Decimator did. It will sound great. I ran my mp-1 into a microcab which is a mic'd speaker cab emulator (which basically takes the place of where you would be using the ir) then ran that signal directly into the soundcard. No power amp.