im thinking about buying a 10" kicker L7 dual 2 ohm sub from a friend. i know that if i wire it in series, i need an amp that could power it while running at 4 ohms. i have a profile HA1000 that puts out 480rms bridged at 4 ohms. the sub handles 600rms, so this should be a good setup, right? its going to go in a sealed box with ~1.5 cu. ft.