Distance from port to back wall

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CadillacMatt
10+ year member

Disturbing the Peace
I realize this has been discussed a lot, but I usually find many answers to this question.

The general consensus of 1/2 dia. of port distance from the rear wall is acceptable, right? I just wanted to get some second opinions before I chop my port tube down any.

As it stands, I will have anywhere from 3.5" to 4" of distance to the rear wall, would this be fine for an 8.75" port? I realize it's a little less than half of the port diameter. The back end WILL be flared, if it makes a difference... and it's an 18" woofer in about 6 cubes of space.

Thanks!

Pic: This is the setup, port hasn't been trimmed yet.

IMG00271-20100802-1906.jpg


 
We did 4 3512's in a Tahoe and the port was only about 2 inches away from the rear wall. It definitely still got loud. You could always just see how it effects sound just by moving it back and forth.

 
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CadillacMatt

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Disturbing the Peace
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