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Btrash

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Posts posted by Btrash

  1. Tuning lower takes more port sq. in.

    EDIT: Actually a longer port of the same diameter because you could have more sq. in with a bigger diameter and have higher tuning. Try getting some different length PVC pipes the same diameter as the port and seeing if putting that in addition to the port there gives you the desired sound. Although with the small size of the sub box, you probably won't get your desired tuning.

  2. 4/2=2

    2^2=4

    4*3.14=12.56

    12.56*2=25.12sqin

    which supposedly is equivalent to 50sqin slot or square ported becuase of the decrease in port velocity due to the flared flanges

    13.71" with flare for 2 4" aeros for 3cuft external port

    Shouldn't you use 2*pi*R for circumference and not pi*r^2 which gives area? The answer in this case is the same anyway since 2^2 = 2*2 (It is port surface area and not port volume correct?)

  3. while I was out of town during the week, my wife or kids went to some site and caught the antivirus 2009 virus or whatever it is.

    I tried for hours to kill it, to no avial, I had to wipe the hdd, so becarefull out there.

    Was gonna post this link

    http://www.bleepingcomputer.com/malware-re...-antivirus-2009

    But noticed you formatted. I guess this can be for anybody else that gets this virus and clicks on this thread.

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