My Friend Wants To Put Two 15" L7's In His Backseat

[cichlidfort]

He drives a BMW 530i series and has horrible trunk space. So this what he is doing. He's buying the new Hifonics BXI 2008 amplifier with two L7 15s in a 5.8 ft cubic box. I built the box myself and its a pretty good box (a little undersized but it still beats) and we put the box in his back seats and it literally takes up all the back. So I am wondering if this is going to be loud right behind his head?

[hotshot27]

I used to have a similar situation. I built a box and it wouldn't fit into my trunk, so I stuck it into the back seat. I then built another box with the same specs and got it ino my trunk. In the backseat, it didn't sound as loud, but everyone said they could hear me further away. In the trunk it is much louder, but I can't be heard from as long of distances anymore. Just make sure the box is secure or it will be a missile in a car accident.

[lil_italy773]

it will get loud im sure but if hes gonna do any comps he might not get the numbers he thinks. i have 4 L7s running off the older 2006D and they powned hard and low but im tuned to 29Hz.

only thing id be worried bout is thats alot of weight behind him hope he sum how bolts that bitch down. jams on the breaks and he might be eating the strearing wheel. the seat has locks but thats a shit ton of weight being propeled forword.

[cichlidfort]

Yeah I see about the moving projectile thing. We are going to reinforce it so its secure but I was just wondering about if it would be loud or not.

[rusty959]

It would probably be a similar senario to if you put a forward facing box in a trunk without sealing it, or like when I just for kicks and giggles took my l7 in the minivan and set it in the middle seat and had it right between the front seats like a wall. I thought it would hit, but realistically, all I heard was port noise. how would you be facing it?

[cichlidfort]

It would probably be a similar senario to if you put a forward facing box in a trunk without sealing it, or like when I just for kicks and giggles took my l7 in the minivan and set it in the middle seat and had it right between the front seats like a wall. I thought it would hit, but realistically, all I heard was port noise. how would you be facing it?

Facing up, both port and subs.

[dblover]

Facing up, both port and subs.

my good buddy has a 540i. We managed to put 2 12 in the back but 15 would be hard. If I were him tell him to get 2 12 and point the subs and ports towards the cabin

[cichlidfort]

hes got subs and box already...too late for that

[dblover]

hes got subs and box already...too late for that

o okay. Sucks it can't fit in the truck or you have to do some custom work to make it fit but would cost alot

[cichlidfort]

Ain't my car so I could care less what he does. I just think its hillarious that he is actually going to follow through and have the box taking up the back seats.