It is very dependant on the equipment used, and the installation. I can say that I have one 12" sub in my car, and I am very satisfied with the bass. It's all in the application.I am trying to decide if i should use one sub @ 900wrms or two subs @900wrms combined. I'm tight on space in the trunk of the GTO and want know if i'd be happy with just 1 12" sub.
there's a big difference in sound between the 10s and 12s. ever played rock on your 12s? doesn't sound NEAR as good as it does with the 10s. 12s hit MUCH lower notes than 10s, where 10s have a better response. plus, 10s just don't hit the db's like 12s or even 15s do.
10s usually sound a lot crisper and cleaner because than 12s. don't get me wrong, some 12s have a very crisp sound to them, but they are meant for more power than 10s.
Manufactures supply different voice coil configurations to allow flexibility in installation. With different parallel/series wiring schemes, it's able to get more output from your amplifier. For example, a Dual 4 ohm voice coil sub can be run at either 2 or 8 ohms; a dual 2 ohm sub can be run at 1 or 4 ohms.What about single voice coil vs. dual voice coil?[/b]