im more of a car audio guy and ive got an 18 sub sittin around and im gonna build a big box and tune it for SQ and i was wondering what amp should i get? i need about 200rms, i dont really know much about home audio amps but im pretty sure i want an equalizer too, but i can only spend like 150 bucks, ill use ebay if you can please help, its 4 ohms