The Fullerton Pro Sound Pack captures the sound of a unique little amp out of the F***** Custom Shop. It's 2x10 configuration, Vintage 10 Celestion speakers and optional class A power section made this a very unique amp to come out of Fullerton.  The fist set of 6 profiles captures Channel 1 in Class A.  The second set capture Channel 2 and it's cascading gain stages. This amp appears to have been an attempt to compete with boogie and their more hot rodded modern American sound. These profiles record beautifully and that is why the Pro Sound amp has been a studio favorite for years.