Im just curious because I am a bit confused. The amps they come with are rated 500 X 2 at 4 ohms a channel. Can I bridge this thing if Im using one sub? Also if I dont want 2 subs could I buy a different brand amp? For example an Aragon palladium 1k 600 X 1 at 4ohms or 1000 X 1 at 2ohms? Im thinking for the price it may not be worth it. But are there any other amps that may do just as good? Like a sunfire is 600+ watts into 4 ohms. The reason I ask is I get deals on sunfire and aragon.