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    Pl8er's Avatar
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    Can someone explain port noise?

    I searched port noise but just get a ton of threads saying "hope you enjoy the port noise" or "your going to have port noise" etc.

    what is port noise? What causes it and what does it most sound like, other than the obvious which is port noise :P



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    Re: Can someone explain port noise?

    Port noise sounds like a whooshing or high velocity air coming thru the port


    Caused by too short of a port

    haha, hook it up and see man, you'll know


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    Pl8er's Avatar
    Pl8er is offline Can you solve it?

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    Re: Can someone explain port noise?

    Most of my boxes I have had were sealed, never had to worry about it.



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    Quote Originally Posted by IamDeMan View Post
    Draw away. It has already been proven with math that you are wrong. I believe math is > paint last time I checked.
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    Quote Originally Posted by pitbull187 View Post
    FYI the blue wire was connected to something else. I know it was put in right b/c the guys at Circuit City put it in.
    "We never underestimate, the destructive power of change."

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    Re: Can someone explain port noise?

    just install it man, and dont worry about it

    If its there just build again, or get used to in, nah mean?


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    Re: Can someone explain port noise?

    Quote Originally Posted by Thieroff View Post
    Caused by too short of a port
    wrong




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    Re: Can someone explain port noise?

    Quote Originally Posted by xluben View Post
    wrong
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    Re: Can someone explain port noise?

    W7's are wooshy even in sealed enclosures. I guess they need better pole piece venting




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    Re: Can someone explain port noise?

    I've got a lil because I didn't round the corners of each port....




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    Re: Can someone explain port noise?

    i had a box liek that and didnt round those corners,........mine was fine mine was 4 cubs @ 28Hz....same number of port turns inside too...



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    Re: Can someone explain port noise?

    Port noise is caused by too small of a port width. The air caused by the speaker thus creates more velocity in said port, which causes the fluttering sound you hear.




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    Re: Can someone explain port noise?

    It's caused by turbulence in the port as a result of either sharp edges on the port or too small a port cross sectional area for the volume of air moving though it. Smaller area equals higher velocity equals compression of the air and noise. Compression will also cause the air to "pack" in the port and change the tuning as well. In an SPL setup it will cost you output. The fix is to make a larger (cross sectional area and also length to keep the tuning the same) port.



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