http://www.diymobileaudio.com/forum/1494849-post87.htmlI came over this Norwegian`s forum/project! Here have the guy build this speakers loction in own car, for not get so much of reflection.
Him have build the dashboard in two version!
Version 2 / last one:
Him have use this materials for sound absorption, around the "wall" there speakers are mount : Bitoplast A5
So the not will be reflection around speakers.
From that I know in the forum, so are this "wall" not more than 2,36inches (6cm) high.
The hole is 1,57inches biggere than 6.5 sax speaker are! The sounds was bettere and had more focus was the write in forum.
Say`s was some peak around 1-2KHz here.
Here are closed box back of this 6.5 sax speakers some also have used Bitoplast A5 too.
Have be used:
Tweeter: Audison Thesis 1.5 Violino
6.5": Audison Thesis 6.5 Sax
Car model: Honda Civic
Here are car finished :
I have not listen to this car , so I don`t know how the sounds are!
But this was interest to read this forum and how the was build.