Db loss (seat doesnt fold down)

[FiReAntZ]

I drive an 85 impala (full system lowdown here: http://www.sounddomain.com/id/fireantz ) and the back seat doesn't fold down which I'm pretty positive makes me lose a few db. My question to you is how many do you think it lowers me? I've never done a mic but hope to sometime in the spring before i leave for the AF.

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[80_Cutlass_mn 10+ year member]

I dont know what the exact numbers would be but I will tell you that I once had my back seats completely out of my car one time and I once turned my system up and all I can say is that what I did hear, I couldnt stand it was so loud. It was loud enough that everytime the subs would hit a real low note, my ears would pop continuously so yea, it makes quite a big difference.

 

[lumpmoron2 10+ year member]

2 maybe 3 db's max? all depends on how much insulation is behind your seats and if there is a sheetmetal wall there as well. i knew someone that gained 4 db from removing the his backseat and cutting out the deck as well, which basically took all the baffling out of the car so the subs hit directly into the cabin. opposed to hitting in the trunk.

 

[packerfan 10+ year member]

might not loose much realy....look at everyone else with trunk systems....

 

[bass maniak 10+ year member]

if you wanted to make it louder and are willing to put in the work or money i would make a box that fires threw a hole in teh rear deck.(i seen it in a caraudio book b4)

you make the box structured so all the bass fires up words threw the hole and then u use xpanding foam to seal it up.

if you want more info on how this works i can draw a pic.