Noob requesting help

[tmac93]

i currently have an 2007 dodge charger sxt with an 18'' ssa icon d2 running off an hifonics brz2100d(overkill i know) in an 6 cuft sealed box with sub facing up. Its like my car is a giant bass sponge!! i can barely get anything out of this system. the backseats down and still sounds muzzled and not loud at all. Does anyone with chargers have this problem?? idk what to do to make this sub louder? i dont have the room for ported, the box barely fits in the trunk as it is. ive never had this kinda problem before. ive herd 2 12'' hifonics brutus hit harder.

this is the optimal sealed box size, for ported it says it has to be 6.25 cuft. could it be possible to add a 6'' aeroport? would the .25 of a cuft make a difference?

[412 CVX]

6 cubic foot sealed??? that's a HUGE box for sealed.

Is your sub not moving much, or does it just sound like crap?

[tmac93]

moves like hell but once u shut the trunk and get in the seat its like its just not hitting as hard as its supposed to

i get plenty of flex from very low songs, but its seems as its all flex no sound lol

like i said ive owned lame 12''s that blow this away

i just need to figure something out, i fell like i spent 300$ on this sub to sound like shit.

[ds1919]

whts the specs? manily Qts. if these are like Qts of .3 or so, then you would prolly need ports. You could prolly use the 6cf size, but custom tune the ports to that box res freq.

the trunk isnt totally sealed with metal all around is it? My bmw was like that, I had to cut holes in the rear deck and do some removal of material behind the back seat. Before it was dead as a door, then after cutting it slammed hard.

[Stee-Z]

if you have a 6ft3 sealed box ..you have room for a ported haha..thats a fuckin huge sealed box..my ported box for my 9515 DD is only 4.5ft3

[tmac93]

whts the specs? manily Qts. if these are like Qts of .3 or so, then you would prolly need ports. You could prolly use the 6cf size, but custom tune the ports to that box res freq.

the trunk isnt totally sealed with metal all around is it? My bmw was like that, I had to cut holes in the rear deck and do some removal of material behind the back seat. Before it was dead as a door, then after cutting it slammed hard.

qts is .51 my res freq is 25.1hz. cant i just port this box with an 6'' aeroport? simply cut a hole for it and mount it? if so then what should i tune to?

by the way i love the lows that just tears shit apart. lol