I just bought 2 Alpine SWR-1221D subs (2005 model) rated at 500W rms each. I was wondering if the MTX 801D amp rated at 800x1 @2ohm would really be underpowering them and not pull much out of the subs. I heard MTX amps are a little underated anyway. The reason I was considering giving them 800W is because I've read MTX makes pretty good amps for the buck. And 1000W rms amps are pretty expensive for a decent brand. They have some pretty good deals on ebay for this amp also. Any info is appreciated. If anybody knows of a 1000W amp comaparable in quality and price as MTX let me know.
You should be ok with the 801D. They put out pretty close to what they say, and you don't need to run the full ratings to your subs to get everything out of them. If you have enough you could go the next size bigger and get the 1501D.