No announcement yet.

porting question

  • Filter
  • Time
  • Show
Clear All
new posts

  • ggunnell
    Jason, a ported/vented/bass reflex enclosure is a Helmholtz resonator that acts primarily via interaction between the air volume in the cabinet and the mass of air in the port. A transmission line acts as a tuned, damped, resonant pipe tuned primarily by the length of the pipe. Either one can exit in a round or rectangular port, and either one can take on characteristics of the other. In subwoofer use, a bass relex port rarely exceeds 30" in length, and a transmission line rarely is shorter than 36".

    For more and better explanations, read about Ported Sytems and Transmision Lines here:

    Leave a comment:

  • Jason
    started a topic porting question

    porting question

    Just a curious question..

    What's the difference between slot porting like the MFW vs. a transmission line?