Well I need 500w rms @4ohm average power for each sub so preferably looking for 2channel DJ amplifier. Let me know if there is some home audio amp which can throw this much power. But am very strict to budget I will compare car, home, dj amp & will go for cheapest one. Currently car amp seems to be cheapest one but using it in home will be very tricky & non efficient job! So I have left with dj or home amp. Am not very specific with class of amp also. I just need raw rms power in cheap. Am even OK with 2nd hand stuff but should be reliable enough. Put some suggestions, tricks & tips. I am gonna compile this system with my Sony HT-M5 Explosive 1580W RMS 5.2ch home theater component system. My budget can be around 10-20k.