Well a sub would be your next step up, but it's best to run a sub off an amp.

You don't want to run a sub off your head unit.

So why not by a cheap 12" JL W0 and a Alpine 5 channel amp.

You could run your highs and sub off the 5 channel.

At this point the only up grade would be an EQ and more/ better of what you already have.

More/better, like an eq and amp for each speaker and the skills to tune it . Yes, it's over kill and most don't go there. So just do a 12" and 5 channel and be done.


Anthony B. Davis 2Deep2 Silver SVT 2002 IASCA SQ Ult Ama 601+ World Champion runner up 2002 SLAP dBQ Champion 2000 USAC SQ World Champion 2002 USACi SQ World Champion