I would refund the money, MINUS shipping. The guy is being a prick, plain and simple. Once you get the amps back and verify they work, I would then give the buyer NEGATIVE feedback to let everyone know what a picky bastard he or she is.
He is really just looking for an excuse to get his money back. He is buying USED, so one should expect things like this.
He is really just looking for an excuse to get his money back. He is buying USED, so one should expect things like this.