ports and roundovers

Rich-R · 12-11-2003, 07:16 AM

I am currently in the design phase of building my first sub. A downward firing av12 with an ebs alignment. The port in the design will need to be 24" long with flares on both ends. The port will be on the bottom as well. I am toying with the idea of using either a premade flared port or making my own via pvc and mdf with a roundover. The only place I could find the port with the required length was precision sound products. I haven't called them so I do not know what the price would be. If I make my own, what radius should the round over be? Thanks Rich.

Brett DiMichele · 12-11-2003, 09:01 AM

There are also companies who sell radiused port ends and
all you do is add PVC Pipe (I think Rockford Fosgate makes
a set of these) also check parts express and see if they
sell just the ends.

As for making the round over into the MDF I think you would
need a 3/4" or larger round over bit.

Rich-R · 12-11-2003, 11:23 AM

Thanks Brett, I checked fosgate's website but could not find any ports listed. I might be missing them however. I also checked out PE but did not see anything that would could be used with pvc. Once again I may be missing it. I was thinking about a 3/4" as well but just wanted to double check. Anyone else have any suggestions/advice? Thanks, rich

Brett DiMichele · 12-11-2003, 11:31 AM

RP9314 Aero Port 3" 2 flanges one tube

http://www.rockfordfosgate.com/accessories/

Precision Port 3"

http://www.partsexpress.com/pe/showd...D=117897&DID=7

Bryan Michael · 12-11-2003, 12:01 PM

parts express sells the ends they are about a buck a piece then all you need is thinwall pvc and some culpings. it will cost you about 5 bucks to make your own. also you need pvc cemennt about 5 bucks for a starter kit.

http://www.partsexpress.com/pe/showd..._ID=5750&DID=7

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