View Full Version : short port?!?!

08-01-2003, 04:55 AM
I got this 3 cF box, after sub displacement and was going to tune it to like 32 hz, but when I calculated the length, it was short, real short.

So, my question is, 3inch diameter, & 4 inches long to small of a port? Will I get port noise with this small port. Not a lot of power going to this sub, like 300 RMS.

Randy Savage
08-01-2003, 05:07 AM
Increase port area...

Make it 2 3" ports- 10" long...

Even 3 3" ports...16" long

Or, you could do 2 4" ports, 19" long

Get more port area...more port area=longer port= less turbulance...

08-01-2003, 03:55 PM
oh yea, forgot about that one there(port displacement). But I only could find one adapter piece to make the end of the 3" pipe to become flanged and flared so it would make a really good fit on the panel of the box.

What else could I use to make sure that the port does not slide around or move?