Well you could TRY to find a KX1200.1 for under $400.00. Or you could check out this amp http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=18797&item=5728804020&rd=1. I'd go for the MTX.
That MTX will be MORE than enough for that sub. If you wanted to upgrade your subs in the future, you could always buy a couple 2 ohm DVC subs or a 1 ohm DVC sub or something along those lines. Besides that, I'd take a MTX amp over a PA amp any day.
Yea you can ask.May I ask why you want to put 1500w into a sub that is rated for 750w? Unless you plan to compete (with one sub?) then you don't need that much power.
Well, not that I dont believe you but I have had many more approvals than dissaprovals for the 2250d,.Yes, I do have experience with PA amps. Their amps are pretty good bang for the buck, but the quality is mediocre compared to MTX. MTX amps are also more true to their ratings - not that PA amps are grossly overrated.