[metrathon]

I'm looking for a thread to summarize the sound modifications we have done in order to improve the listening experience in our F30.
I'm coming from a L7 in a 7 Series and while the HiFi on my 328i doesn't sound bad, I feel there's a lot of room for improvement. I'm not an a'phile but If I can spend $1k and equal the sound quality of the L7, I'll do it.

Speakers
Fitting 2 x 10" under the seats would be ideal, because would spare me of having to deal with an extra sub in the trunk.
As for the rest of the speakers, I'm going to look for something softer, darker, as high frequencies make my ears bleed.

Amp
Rumor is the stock amp sends a highly equed signal to the speakers, so replacing it would be a must.

Equalization, Phasing & Calibration
This is what worries me the most because I know it makes a huge difference in the quality of sound. From what I understand, I have two main options:
1. JBL MS-8 with the auto calibration/eq/phasing would be the easiest and probably less expensive.
2. Take the car to a shop (have no idea which one) and have it calibrated by the guys there. Without having a quote yet, this one sounds (pun lol) expensive.

What do you guys think? And please list your sound mods, as I'm sure a lot of ppl need inspiration.