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Question about ports

Discussion in 'Amps and Cabs [BG]' started by xyllion, Apr 9, 2003.

  1. xyllion

    xyllion Commercial User

    Jan 14, 2003
    San Jose, CA, USA
    Owner, Looperlative Audio Products
    Ok, so I've been dabbling in speaker design and the port dimensions calculated always end up being 6, 7, or more inches. Yet I look at commercially built cabs and the ports never seem to be longer than an inch. What gives? Do their ports serve a different purpose?
  2. ESP-LTD


    Sep 9, 2001
    Nope; they work just the same as any other ports.

    It's really handy to design your ports to be 3/4" long and when you use 3/4" baffle boards, all you have to do is cut a hole!

    The problem is (as you have noticed) is that if the port is big enough to not chuff, and 3/4" long, it tunes the cabinet pretty high for a bass guitar.

    If you start measuring cabinets and studying how most cabinets are tuned, it will motivate you to conduct some experiments on your own.

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