And then, how one could add baffle?
So I started reading about baffles.
It seems they actually do not do any good to car speakers that are designed to be open space, or so called infinite baffle (I/B) enclosure. Adding a baffle would kill mid bass and distortion.
Of course, some claim otherwise, but all guys who actually work in audio industry say that it brings no good. The only thing is - protection.
On one hand - sub-woofers are enclosed. Most of the time with a vent. So I would think baffle should help. However, the size of the enclosure depends on many parameters of the speaker itself. What is the membrane made of, what is its power, sound range, and so. And I am coming to a conclusion that a better solution would be a deadening foam liner in the door.
That what helped my speakers back in a day. No weird resonance from the door anymore and low end got "soften".
Any input from audio guys?