My bro is giving a LOC. I have my JL w3's 2x12 in bassworx reference series. Don't remember specs on stiffening cap, 1000 watts rms American audio monoblock. I'm deciding whether I should sound deaden with it at install. The system was very loud in my truck, I will obviously have to set up the eq again through the stock deck, as close as possible. Anyone have experience in excess?