If your speakers are 6' high, and you're sitting while listening, all the sound is going right over your head (ears).
There are numerous things "wrong" with your setup, but that seems to stand out as the biggest one right now. You want to get those tweeters at ear level (while seated in your listening position) or as close as possible.
Yes, using a PS2 as your DVD/CD player could be improved upon.
What receiver are you using? This can make a difference, but even a really cheap old receiver shouldn't make everything sound dull. (Especially Axioms)
Finally, speaker break-in isn't going to change anything. Ian himself (Axioms designer) has been quoted as saying that after a couple hours, any "break-in" will be done. It is indeed usually your ears (mind) getting used to a new sound.
Try moving the speakers into a better position, and I think you'll be very happily surprised.
Good luck, and please let us know how it turns out.
