x6369x Posted January 12, 2008 Report Share Posted January 12, 2008 I need some help calculating port length ... I have an Atomic APSPL12 that I'm putting in a 2.0 ft3 box per Atomic's design: 2.0ft3 4” port x 12” long (36Hz) F3=39Hz 600w I'm using a 4" Aeroport and the box will only have an internal depth of 8.5", so I will need to use a 90 degree elbow. IIRC ... for a 90 degree bend, you have to add 1/2 the port width, so the overall port length will be 14". Is that correct? Link to comment Share on other sites More sharing options...
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