[Tony F]

"Actually, many things are scratched off the back of the amp which leads
MORE credence to Winkenstein's theory that it is some other brand of amp
"disguised" to look like a PPI."

Why would someone want to scratch off anything on the back to "disguise" it?
Specifically regarding the serial number, it is a crime in WA state to
scratch that off. But I understand your point, Nick...just lending my
opinion.

Tony