Aq Hd's, Sundown Nightshades, DD 3500 series, MMats dreadnauts, the list goes on and on. The space you have available and the vehicle your using should be your biggest determining factors when choosing a subwoofer. 5 cubes plus=15", 2.5-4 cubes=12" under 2.5cubes 8's 0r 10's. 1500 watts is enough to power a daily substage. Find something that fits in you car and will give your amp a 1 ohm nominal load.