View Full Version : This doesnt seem right...

11-04-2006, 04:29 PM
I'm now converting my failed attempt at bandpass into a ported enclosure tuned to 40 hz. I tried using several round port calculators thinking it'd be easiest to go get some pvc and just do it that way. Deminsions of the box are roughly 18x30x12
3.75^3 before displacements. I also plan to do alot of renforcing to take up some of that space that is not needed. so let's say 2.9-3.0 cubes tuned to 40hz. When I calculate that on several online calculators I get some odd 1.6456 inches. That cant be correct...can it? Btw, this is for an 06 L7 12".

Death By Bass
11-04-2006, 04:30 PM
you get what for what sorry?

11-04-2006, 04:33 PM
my bad... 1 port 4"

11-04-2006, 04:47 PM
the 1.xx something was actually for a 3" port, sorry. But is this calculator accurate is the question at hand here... :laugh: http://www.carstereo.com/help2/Articles.cfm?id=31

11-04-2006, 04:49 PM
So would 2 4" pvc pipes exactly 11" work just as well?

11-04-2006, 04:56 PM
So I'm guessing there is a huge disadvantage in the 1 port since I've never saw a 1" port...haha:eyebrow:

11-04-2006, 04:57 PM
Had it tuned super low, dont like it, was just going to see what 40hz was like. What do you suggest?

11-04-2006, 04:58 PM
Keep in mind this is being built out of scrap from a failed attempt so it's probably not permanent.

11-04-2006, 05:09 PM
I wanted to notice the difference from 32hz though. Like I said, if this doesnt work out, I'll get some more mdf and start over. Thanks for the help. going to try 38 hz with 4 inchers I think.