lownoma99
+1y
if the subs are dual 4 ohm coils, and ur running 2 of them, u can use an amp that pushes 600 watts RMS at either 1 ohm or 4 ohm. itll be very hard to find a monoblock thats 1 ohm stable thats not too pricy. some of the alpine amps i know have a variable power supply(meaning they can push X power at either 4 or 2 ohm levels).
if you go that route, find an amp that pushed 600RMS at 4 ohm. wire the subs in series to see an 8 ohm load per sub and then parallel them to the amp.
OR... you can find a good 2 channel amp that pushes 300 RMS per channel at 2 ohm and wire each sub independently to each channel. for a visual guide, check out crutchfields wiring diagrams. they halp a lot if your trying to figure shit out