here is a link to a Amp Shoot-Out : Vypyr vs. Mustang (Peavey vs. Fender)
http://www.youtube.com/watch?v=NUf3NvKjOn4&feature=related
Here's link to one going right to the Vypyr clean channel
http://www.youtube.com/watch?v=8OhOzFX6hWA&feature=relmfu
You may want to check out this guys other demo/reviews
happy shopping