If change a head unit and use back ur original speaker, i dun think it can improve ur car sound quality.

If change a new speaker ( 4inch speaker on dashboard or 6inch mid bass in rear door ), i also dun think can improve alot the sound quality.

Cos 4inch speaker mount on the dashboard, it is dun have a good enclosure to your 4inch speaker, so it have a short circuit problem to the sound acoustics.

My suggest is change a 2.5inch fullrage speaker with passive crossover, and custom made a a-pillar work (make a enclosure) to ur 2.5inch fullrange speaker. It will improve ur sound quality from mid range frequecny till high range frequency.


example:










This post has been edited by mr.wong: Mar 10 2011, 02:00 AM

PM u already

6.5 inch mid bass better install to ur door panel.
And pls pls pls remember dun buy the door casing in Acc shop, the one sell rm150+/-。。。。very unuseful, bad sound.
Better ask a good installer help u modify the door panel and install 6 inch mid bass

no need inclosure ? just screw it like original speaker?