Yeah, Sounddomain should beat the price. They have a 105% lowest price policy which means they meet the price and then beat it by 5%. Although they sometimes will give you a hard time about it if the opponent is not an authorized retailer or something like that. And ofcourse they're not going to offer that price policy on eBay items. They haven't turned me down on anything yet though.

I've got the 600.1 as well...it's a sub amp though. I got that one for around $150. Are you looking for an amp to use on components or subs? You'll want to stick with a class D amp for your sub(s) and a class a/b for your components. One thing I really like about the JBL amps is how cool they run, I've yet to have one go into protect mode even at high volumes for long periods of time. They're proven performers as far as I'm concerned.