Well you may not like my opinion, but i don't want to even know how mcuh money i have wasted in my younger teen years on crappy, cheap car audio equipment. Blowing up one thing, and getting another piece of crap, thinking that the 1000 watts it was rated at would sound awsome...the bottom line, buy a good quality, major brand amp. These amps will put to shame the brands you mentioned above, and even though their power output may be like 500 watts, the cheap amps ratings of 1500 watts is way overkill. That power rating is at clipping, and max power, with a crap load of distortion...Spend the cash for a more expensive amp, you won't regret it. Take this from a guy who has had damn near every brand of cheap car audio products, and almost every one had busted some how..Well the amps i have now, take the 1100d's for example, they retail for around 750 bucks a piece..I have put these amps though all hell, overheated and shut them down with their protection circuits many, many times, loads of full output DB dragracing competitions, and they dont even shed a tear Tell me one cheap amp that can do that....Spend your money wisely, you wont regret it...Save up if you need to...

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)