This is a collection of impulse responses gathered from around the web. I have converted them to sysex format so you can send them directly to your Axe-Fx. I make no guarantees on how they sound, in fact some sound lousy to me. Others sound great. (BTW, many of these are included with a certain VST plug-in, the names slightly changed.) Enjoy!
http://www.fractalaudio.com/Documents/I ... pulses.zip
http://www.fractalaudio.com/Documents/I ... pulses.zip