About a year ago I decided to change out my car sound system, it was really lacking bass and audio quality. I bought a sony head unit, and a subwoofer package. Now that I have had it for a year I think I want something louder, my car is a convertible and when riding with the top down you can barely hear the sub. I'm completely lost on what I should be looking for, if I should put money into a bigger sub or put some money into different speakers.
The head unit that I have: Car Stereo Receiver - CDXGT565UP Review | Sony Store U.S. - Sony US
and the sub package: Belva BPKG110 500W Package: 10" Sub, Box, Amplifier & Amp Kit
Number of subs preferred: Doesn't matter
Size preferred: Any size, my car has a large trunk
Budget: Preferably below $350
Power to be used: Also would need an amp, clueless on amps also
Space available: 32 x 18 inches
Goals: Loudness
Listening habits: edm, trap
The head unit that I have: Car Stereo Receiver - CDXGT565UP Review | Sony Store U.S. - Sony US
and the sub package: Belva BPKG110 500W Package: 10" Sub, Box, Amplifier & Amp Kit
Number of subs preferred: Doesn't matter
Size preferred: Any size, my car has a large trunk
Budget: Preferably below $350
Power to be used: Also would need an amp, clueless on amps also
Space available: 32 x 18 inches
Goals: Loudness
Listening habits: edm, trap