How much sound deadening is enough?
I have one layer of RAAMmat 60 in my doors, on the outer skin, with 2 layers in a 8" square area behind the speakers. Doors are all metal and pretty thick (85 Oldsmobile). There's more RAAMmat on the inner door panel behind the carpeted trim panel, as well as the factory layer of foam rubber.
I'm experiencing some strange "boomieness" with my door speakers, at midbass frequencies. They're Infinity Kappa 5.25 coaxials. Wondering if this is due to the door resonating, or the choice of speakers, or what.
1999 Buick Park Ave Ultra
Head Unit: JVC KWHDR720
EQ: Audiocontrol EQL
Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
Sub Stage: Boston G3 10", 0.5 cu ft sealed
Amp: PPI Phantom 900.4
Rear Fill: Boston SE953 6X9's