Your next move, I think, should be an external amp in the trunk.

If you want to get more bass, go for a subwoofer mounted in the trunk below the deck and using either the first aid kit or the utility bin opening as a port.

I faced the same issue you are facing. I got mb quarts all around (4x6 in my case) and a Clarion amp. I realize the name clarion may wrinkle some foreheads, but they've come a long way in the past few years. Also, I had to think about the speakers I was driving (4x6) I didnt need a super expensive ultra efficient amp to drive 4 of these modestly sized speakers. So that configuration provides clean clear upper-mid range frequencies. Now the bass was adimitedly lacking. To get those low frequencies I use an Infinity Basslink Powered Sub.

I listen to music of all kinds, but mostly classic jazz, swing, and classical. I am very happy with the sound this all provides. I dont know how much you want to spend, but this was all done for around $650 P&L.

Poke around the forum here for lots of advice on components.

Have fun, and listen often.

__________________
James

85 300SD 285k
Charcoal Gray/Grey MB-Tex

79 300CD 142000mi "Rabenshwarz"
Black / Black MB-Tex, Burlwood Int. TOTALLED - 10/24/02 --