thinking about this in particular
Kenwood KSC-SW11 150W Underseat Active Subwoofer with Passive Radiator
not looking for earth shattering base or hifi quality, just like a little more punch to what I have already, which is 2 6x9s under the rear seat. Top and mid are OK but bass is poor and yes the phase is correct.
don't want anything in or under the dash and prefer a simple installation
thanks in advance