Hey i prolly already asked this but if i were to get the 18" or 15" RE x.x.x sub what ohm voice coils should i get for it dual 2 ohm or quad. i got a Hifonics Brutus 1500x1 @ 1ohm, 1000x1 @ 2 ohms. I think the dual 2 ohm x.x.x would work with that amp but i am just checking to make sure. thanks