Right now I have the OEM setup that came with my 2000 Eclipse GT +
a JL Audio 500/1 sub amp
2 88120.4 Eclipse aluminum subwoofers
30Gb Rio Car

I am very dissapointed in how this turned out, because there is just too much bass. The amp is turned down as low as it goes and the bass is still overpowering. It just isn't that controllable with the stock headunit.

I plan to add this May:
an Eclipse CD8051headunit (with subwoofer volume control)
JL Audio 300/4
MB Quart QSD 216 6.5" component set for the front
MB Quart DTC 169 6 x 9 for the rear

Has anyone heard the MB Quart QSD 216's? I'd love to hear from you.