Looking to improve mid-bass response?
This foam is used in all of our Intermediate Audio installations and also available as an opt-in for Basic.
We recommended these to be used on the speakers installed inside the door panel.
The closed cell foam helps in directing sound waves to the listener’s position.
It also provides additional protection and reduce vibrations between the door, door panels and speaker.
A small investment to optimize performance from your investments!
A quick reference, courtesy of JL Audio here.