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Precision Port 4" Flared Speaker Cabinet Port Tube Kit
How does the flare affect the overall port length. I know back in the day we used 0.5x the diameter for the length of the flared piece. For example, if using a 3" port, and plans called for a 15" port we would cut the tube to 12". Is that true here also?
It really depends on the flare itself, but in this case that rule can apply without a problem.
Date published: 2014-11-11
what is the displacement of your 4 inch diameter flared port tube,, I was going to put it in a subwoofer box an I need to know so I can calculate my internal volume
We can help calculate that for you. The displacement will depend on the length of the port. If used as the full 17 inch overall length, the displacement is 0.14 cubic feet.
Date published: 2014-10-03
What difference does the inside flare make. Cause I can't use it in my situation. Unless I cut the port really short. And I do not want that. It's for a 18 so a lot of air will be moving.
Not adding the rear flare could add slight chuffing or unwanted port noise but it will allow for a shorter port tube.
Date published: 2014-08-11
how short can the tube be ?
Using the port calculator for my speaker cabinet project the difference is only one inch .Is this enough to attach the two flares to ?Is there a minimum tube size requirement to adequately attach the flares together with the pipe ?I can't go to a smaller port size
The shortest affective port length you can have is with both flares coupled together (excluding the tube completely) and this will result in a port length of roughly 3-1/2", not including the flared ends.
Date published: 2013-07-29
Does a port always have to be inside the cabinet?
What I mean can I put a port outside rather than inside and sill function the same as if it were inside?
No the port does not need to be on the inside, it will do the same thing if it were on the outside of the cabinet.
Date published: 2013-01-14
What glue to use besides PVC Primer/Cement?
I know the instruction say to use PVC Primer/Cement or ABS Cement, but is there something else that would prove to be just as good and a little easier to work with like rubber cement, gorilla glue, etc. Thanks.
Rubber cement or Gorilla glue will probably work but probably wont last very long. I didn't have any pvc glue so I used some glue for building model cars. Basically anything that will melt the plastic will work and last. Super glue might work well.
Date published: 2013-01-13