-------------------------------------------------------------------------------- this is the deal i have 4 10 inch ev's im using for mids.if anyone here know what they are. btu i have hem in like a board so i can get the full effect. but here is the thing my friend has 2 of them in his car and his is louder than mine. he has an audi car and i have the new buick rendezvous truck but i dont understand why mine is lower than his. his are in his deck right next to the window and mine are built in a deck right next to the window-but here is the funny thing when i open the hatch it sounds like a block party-why cant i get all the voice to go forward? can someone help. for bass i have 4 12 inch jl audio w6v2 subs and 2 1000.1 jl amps so can someone recommend any thing about why my voice is lower volume in the front and loud in the back when i open the hatch= please