I currently have a 12" RF P2 sub. (4 ohm version). Its a 2010 version I think. (250 RMS)
Is been a great sub in my hatchback.
Sometimes the bass doesnt seem very crisp. Its in a ported box BTW.
Would a Boston Acoustics G312-4 be a good option? Is that a good sub/brand? Would I be a "major"...