Hello guy's.

I have a '96 Infiniti i30, and as you know it has a (ok) BOSS system.

I am looking to spend about $300 - $400 (using ebay) to make the quality and loudness of the sound better.

I want it to sound like Mark Levinson system, or something like it. I don't want huge bass. All I want is my stereo to be louder, cleaner, crispier and have some more bass to it as it will fade away if I put in the tweeters.

So, I would realy appreciate if you could help me out in chosing the right stuff for the car.
If you can please list the models of the products so that I can find it faster.

Thanks, I appreciate the help.