This is an open topic, for audiophiles. As I was passing through YelloHat store, I met a sound designer who suggested Brax as a brand to install into my car (Audi A8).

Now from what I understand, that the small tweeters that B&O uses at the fronts are going to be disabled (only the sound) while keeping their operation (up/down) running.

Everything in the car from B&O is going to be replaced by Brax/Helix combination. Speakers, cables, amps and subwoofers. The metallic grills are going to be the same, modification is only inside.

Now my questions are:
1- How far the sound quality is going to improve?
2- Is the MMI going to be affected?

Full system is 12,200$

Advice from experts is appreciated.