give me some box ideas

[Raisedin305 5,000+ posts]

Hey I want some box ideas. I have two 15" kicker L7s (dvc2) running off an orion 2500d. I want a ported box mainly for spl...I have an 05 ford expedition. What do you guys recommend?

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[Harrison486 10+ year member]

with that type of vehicle you should definitely be able to fit a large box...

I assume you should be looking anywhere from 4-6 cubes per driver

 

[Raisedin305 5,000+ posts]

Me and Chinny were looking at something like 9cubic ft for both subs. Should I put both subs in one box or two different boxes or it doesnt really matter?

 

[Harrison486 10+ year member]

It really doesn't matter, but building one box with two sepereate chambers will add extra support and if one sub ever blows or anything you can still use the box...

 

[Raisedin305 5,000+ posts]

It really doesn't matter, but building one box with two sepereate chambers will add extra support and if one sub ever blows or anything you can still use the box...

If im looking for mainly SPL what should I tune the box to? (hz)

 

[ruckus]

you need to get the resonant frequency of your car to say for sure. different frequencies have different effects in each car.

 

[Harrison486 10+ year member]

you need to get the resonant frequency of your car to say for sure. different frequencies have different effects in each car.

I thought that was for competition boxes only....

Are you going to be competing? If so, you have to do what ruckus says...

If this is just a daily driver and you are going for mostly spl, Id reccomend 35-40hz

 

[Raisedin305 5,000+ posts]

I thought that was for competition boxes only....
Are you going to be competing? If so, you have to do what ruckus says...

If this is just a daily driver and you are going for mostly spl, Id reccomend 35-40hz

Chinny said he wanted to do 35hz. I was looking at people's setups that compete alot and I see they run alot of boxes at 40hz or higher. I want to compete but I do use this also for daily driving. Why wouldnt something above 40hz be good for daily driving?

 

[ruckus]

I use 40hz on memphis subs and it is fine. but you cant have it both ways if you tune for daily driving you wont compete in Miami. your class you would be in, people are hitting 150+ all day long and you aint doing that with 2 l7 subs @ 35hz. and you actually would get a higher score with a single L7 than 2 from what ive been reading lately.

 

[Raisedin305 5,000+ posts]

I use 40hz on memphis subs and it is fine. but you cant have it both ways if you tune for daily driving you wont compete in Miami. your class you would be in, people are hitting 150+ all day long and you aint going that with 2 l7 subs @ 35hz

K so what HZ do you recommend? I was looking at something around 45hz??

 

[Raisedin305 5,000+ posts]

My friend hit 150spl yesterday at 305 vibes and rides with two L7s running 800rms to each in a sealed box.

 

[ruckus]

45 wont sound too good for daily driving. I wouldnt go above 40hz for daily driving. if your just gonna compete then your looking into something in the 50hz range depending on your cars r.f. its trial and error. (thats why i like flared precision ports, you can tune em and cut shorter to tune deeper. )

 

[ruckus]

My friend hit 150spl yesterday at 305 vibes and rides with two L7s running 800rms to each in a sealed box.

what meter, what car, location of meter? 150 in a sealed on 2 l7 doesnt quite sound right. 145 yes but 150 sounds a little much.

 

[Raisedin305 5,000+ posts]

what meter, what car, location of meter? 150 in a sealed on 2 l7 doesnt quite sound right.

He did it in his scion (boxed suv). The meter was located at the dash board and he was in the outlaw class, had his windows up, seats down, car running.

 

[Raisedin305 5,000+ posts]

45 wont sound too good for daily driving. I wouldnt go above 40hz for daily driving. if your just gonna compete then your looking into something in the 50hz range depending on your cars r.f. its trial and error. (thats why i like flared precision ports, you can tune em and cut shorter to tune deeper. )

Why do you say that it isnt good for daily driving? Is it just because the bass will sound bad? It won't be as reliable or somethin? Explain...