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Thanks for the write up. I'm planning on deadening my BRZ doors and am using SoundDeadenerShowdown.com as my source of info. Understanding the difference between CLV vs. CCF vs. MLV was like climbing a mountain, altough in the end it's relatively simple stuff. I always thought sound deadener was a "one item conquers all" thing (no doubt due to dynamat marketing) so the biggest hurdle was understanding there are different items for different applications.
Sounddeadenershowdown talks about MLV (mass loaded vinyl) being the major sound deadening contributor. Is there a reason you didn't use any MLV in your setup? Was it weight savings since MLV is usually the heaviest of the three products (1lb per ft^2)? Was it because you aren't really trying to "sound proof" the door but "deaden" it? Not trying to poke holes in your plan just trying to learn.
I already put Dayton RS180-4 midbass speakers in my doors so I'm tackling this project differently than you. Going from 2ohm to 4ohm killed the power from the stock amp so it wasn't very beneficial, although a lot of the "mud" was removed. I did realize in the process that the door speakers are receiving a full range of frequencies (or close to it). Maybe putting a bandpass inline with the stockers will allow them to play their selected frequencies with sufficient clarity.
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