So I just picked up a pair of NIB (never used) year 2000 RF Punch HX2 15s.
The biggest box that'd possibly fit into my car would be exactly to their manual spec. 2.5 cubes net each, 4" aero port each (intend to to tune to 30-32)
Or I keep the box I have in the car already (for two 12", around 1.85 cubes net each, 32hz, 64" port area) and buy a pair of DC Level 3 12s (older gen, 600w RMS).
Either pair will be receiving 1.5kw of power.
So what would you guys do? I know the DC subs are more beastly, and will take more abuse and power then the Rockfords, but it is much more cone area on those 15" HX2s. My goal is SQL.