Soundqubed S-2250 - $250 - These have my interest lol
Skar RP1500 - $180
Skar RP2000.1 - $230
Soundstream Rubicon 2500 - $220 ebay
Soundstream Ta1.3000d - $250 off Ebay, I have this amp,(dont get the newest model t1.6000d) This is rated 3k at .5 and 2500 at 1, though when dyno'd by Tfade it did 2000 at 1 ohm so safe to say it will do 2500 at .5. Can also be burped at .25 and ran at .25(i have not done this but i have seen in person them doing this. I have had this for like 5 years has always been solid. Ran at .5 for the first 2.5years and then changed to 1 ohm and bout to go back to .5 ohm for my ZV4 15 D1.