I have 4 15s that are in 2 ohm I was told by the guy I bought them from I can wire them into 1ohm. The subs are 500 watt rms each and I would like to know what kind of amp I could buy for around $300 that would be good to pound those subs...I have looked at MA Audio 2000d, Hifonics bxi2006d, Power Acoustik A2400D, and heard of this amp called Quantom Audio AB3000D...Please help on me finding a good amp for that price I know its not much but its all I have. Thanks