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Thread: JBL L200B Port Size

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    JBL L200B Port Size

    Hi! Can some one give me some help with the port size for L200B. Cant find it anywere. Thanks

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    Dang. Amateur speakerdave's Avatar
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    Quote Originally Posted by Medicine_man View Post
    Hi! Can some one give me some help with the port size for L200B. Cant find it anywere. Thanks
    You may need to find someone who owns those speakers and get him or her to measure them for you. JBL usually does not publish that spec, and I've never had a pair. Sorry.
    "Audio is filled with dangerous amateurs." --- Tim de Paravicini

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    Quote Originally Posted by speakerdave View Post
    You may need to find someone who owns those speakers and get him or her to measure them for you. JBL usually does not publish that spec, and I've never had a pair. Sorry.

    I have some information about the port length, but Im not sure if it is correct.

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    Moderator hjames's Avatar
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    Quote Originally Posted by Medicine_man View Post
    Hi! Can some one give me some help with the port size for L200B.
    Cant find it anywhere. Thanks
    Sold mine a few years back - nothing to measure ...
    2ch: WiiM Pro; Topping E30 II DAC; Oppo, Acurus RL-11, Acurus A200, JBL Dynamics Project - Offline: L212-TwinStack, VonSchweikert VR-4
    7: TIVO, Oppo BDP103D, B&K, 2pr UREI 809A, TF600, JBL B460

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    Quote Originally Posted by hjames View Post
    Sold mine a few years back - nothing to measure ...
    May be it will be easier to figure out port legth for JBL 136A. The cabinets are about 5cubic feet. I think the measurements will be quite close.

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    Senior Member audiomagnate's Avatar
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    Quote Originally Posted by speakerdave View Post
    Try a 13 sq in duct 4 1/2 in long.

    Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.

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    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by audiomagnate View Post
    Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.
    This sounds about right... perhaps a bit longer. If I had BB6 running I give it a go.

    Anyone still out there with L200Bs?


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    Quote Originally Posted by audiomagnate View Post
    Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.
    As I understand correctly the port should be

    10.80 cm
    long

    10.16 cm diameter.

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    Senior Member audiomagnate's Avatar
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    Quote Originally Posted by audiomagnate View Post
    Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.
    Quote Originally Posted by Medicine_man View Post
    As I understand correctly the port should be

    10.80 cm
    long

    10.16 cm diameter.
    That's what I got with a ruler on my 300's. My buddy has 200B's, I'll ask him to measure his if no one else has a definitive answer.

  10. #10
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    Quote Originally Posted by audiomagnate View Post
    That's what I got with a ruler on my 300's. My buddy has 200B's, I'll ask him to measure his if no one else has a definitive answer.
    OK. Lets see if some one could help with this =)

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