Sub Direction Question

[PekingMan]

Is there any major differences between placing the firing position of the upward rather than towards the back? I know low frequency sound waves are omnidirectional, but I can't help but wonder if this will change some of the acoustics. Any thoughts?

 

[Texplorer]

I was told that the best direction to aim a sub was at the rear window. The sound will hit the window and then reflect off toward the cab making it deeper. But that is just what I was told.

 

[B94Sport]

Yes, you want the sound waves to travel the longest distance possible because they have such a long wavelength. So firing towards the rear hatch is the best. This is the reason why a system (at least the bass portion of it) will often sound much louder when you stand outside of a car than it does when you are inside it.

 

[Ben51925]

What I've found to work the best is subs up and port back. Also it sounds better with the subs up so there is less rattling from the hatch.

 

[B94Sport]

I don't have any experience with ported box systems, but that makes sense. As for the rattling, a layer or two of dynamat will fix that. The only rattle problem I had with my 3 12s was the outer hatch handle. That was easily fixed with a small rubber washer placed between the two pieces of the handle. I can crank it and get nothing but bass

 

[WoodysX]

The only problem that I have and others have is that our boxes (when subs face the back hatch) is that they are a lot taller than the depth causing them to fall over when accelating too quick, or doing burn outs. Thats why I have dicided to face my subs up sounds about the same. Check my page out if you would like 2 see.