Obviously not if the standard ones can't reproduce the full frequency range.

My 2010 35d has tweeters fitted and I didn't spec any 'extra' stereo stuff. I have not looked to see if the amp is in a separate box.

I'm not suggesting that the OP here hasn't made big improvements to his system, just that for a standard manufacturers build there is nor real value in putting the amp components in a separate box.



I am a bit of an audio fanatic and have been for many years but my focus is on my system at home. For me, a car system is just background music and as long as its of reasonable quality I'm happy. You are never going to get really good and accurate reproduction in a car due to the small air space available and the inhospitable surroundings (vibration, noise, unstable supply voltage etc etc). Once you have to resort to filters, tone controls and artificially boosting or cutting frequencys real Hi-Fi reproduction is out of the window.

I'm not saying you can't get a great 'sound' in a car, its just not going to be an accurate reproduction of the original recording, which is what an audiophile will strive for at home.