You really can't have too much power, but you can sure use too much power! I would imaging that a high quality 200wt amp would be more than you would ever need and probably wouldn't cost near as much. If you've never heard this amp and your speakers, in your house, why do you like the Pass amps? They sure look nice and they've got a great reputation but that doesn't mean you'll like them or that you need them either.
FWIW. Your money.
FWIW. Your money.