OP
if you get two dual 4 ohm subs then you can wire them down so they see a 1 ohm load, this means you can get maximum wattage out of your amplifier. if you get the two single 4 ohm subs you will only be able to wire down to 2 ohms, essentially only getting half the useable power out of your amp.this one: Sundown Audio E10 D4
And may I ask why the dual 4 ohm?
that sounds like an easy way to clip the amp..yeah, maybe go a little conservative, but leave some system headroom......unless you intend to just play test tones.you arent forced to use all 1200 watts. when setting your gains you set the gain knob to 800 watts. you dont need to use all 1200 watts