Subwoofers that face each other.

[Mobile Chassis Dyno]

What is a good rule of thumb when building an enclosure in which you have subwoofers facing each other. I imagine there is a minimum distance that they need to be a part. How is tuning, spl, sound quality affected with this distance?

Thanks in advance!!

[mr.p]

i dont think anyone has specifically calculated it....try to keep them as far apart as possible unless its a bandpass i imagine....

[Mobile Chassis Dyno]

i dont think anyone has specifically calculated it....try to keep them as far apart as possible unless its a bandpass i imagine....

Your enclosure brings up another question. It would seem that having 4 subs firing at each other would cause some type of cancellation of sound waves. I am probably wrong.

The reason for these questions is I am getting the itch to do something with one of my trucks. I am considering doing a blow thru with my ranger. Not sure I am willing to take a saw to my diesel.

[Miakehl]

I have my subs facing each other just slightly off angle and it's the loudest to the ear I've heard in my car...

[mr.p]

its a compromise. im sure a flat wall with the same given cone vs a bass tunnel will be louder avoiding said problems, but a diamond or tunnel has a half ass bandpass effect all in its own.

[Boon]

It depends what you're trying to achieve. Generally you need to have them far enough apart that the space between them doesn't act as a port/chamber - this means the opening should have an area greater than the combined piston area of the woofers inside it.

[rawlins87]

Good to see you made it on here Brian. This is 351lightning on CR. Don't really need to much space. Diamonds and tunnels (sp?) builds are within 12-18inches apart. If it's a build like chickens hoopty you could get some effects of a sixth order bp. Clamshell it if you are low on space.