you can get that 1000 watt alpine for 250$ new ive seen it some places online that low, and that will do 1000 @ 2 ohms, the sundown will only do 1000 @ 1 ohm, so if your running a 2 ohm load dont bother with it. I like kickers zx1000 and zx1500 amps but they will run you a ton of money, cheapest zx1500 ive found was 384 new. Just take your time choosing, you dont want to spend 250 to be unhappy and wish you would have spent 100 more when you had the opportunity.