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  1. #1

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    Default Sealed or ported

    Can you make a sealed sub into a ported one with a port tube from partsexpress? Or do I need to do something to the inside of the sub? thanks
    My HT set-up Panasonic front proj, 120 in ws screen, ATI amp,Integra 9.8 pre-pro, 2 Polk rti150, cp 1000, 4 fx 1000, Pioneer blu-ray 2 SVS sub pb 12-ultra 2, & Paragon popcorn popper. ps 3 Coaster leather HT recliners.

  2. #2

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    Default

    You need to find the T/S parameters for the driver to see if it is suitable for a ported enclosure.

    Then you use those specs and a program like Unibox to design the box.

    Often sealed boxes are too small to convert to ported.

    If you cannot find or measure the T/S parameters, than I suggest you do not modify the box.
    Graham

  3. #3

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    Default Sub

    Thanks, the sub is a 3 cubic ft with a Titan 3 15 in sub from partsexpress
    My HT set-up Panasonic front proj, 120 in ws screen, ATI amp,Integra 9.8 pre-pro, 2 Polk rti150, cp 1000, 4 fx 1000, Pioneer blu-ray 2 SVS sub pb 12-ultra 2, & Paragon popcorn popper. ps 3 Coaster leather HT recliners.

  4. #4

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    Default

    In that case you should be able to ge the T/S specs from PE. You can throw them in Unibox and see if the box will work.
    Graham

  5. #5

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    Default

    Don't forget to accomodate for the port, it takes up space too.

  6. #6

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    Default

    Often sealed boxes are too small to convert to ported.
    He can always have the port sticking way out of the enclosure, like an exhaust pipe. Tune it to 18 Hz and away you go.

    Oh, what was that about Vb, Fb, and volumetric efficiency?

    (sorry, just couldn't resist) :p
    "What we do in life echoes in eternity"

    Ed Mullen (emullen@svsound.com)
    Director - Technology and Customer Relations
    Specialty Technologies
    SVSound

  7. #7

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    Originally posted by Dr. Spec
    He can always have the port sticking way out of the enclosure, like an exhaust pipe. Tune it to 18 Hz and away you go.

    Oh, what was that about Vb, Fb, and volumetric efficiency?

    (sorry, just couldn't resist) :p
    Ouch! Live and learn right Doc? I thought you forgot about that experiment.:D
    Graham

  8. #8

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    Smile

    What was the outcome of the exhaust pipe ported sub? Sounds like a plan I'd come up with, except I was hoping that it would work! If it did work, would dual exhaust get me more performance?

    Which gives me another idea. What about a nitrous injected cabinet for really deep passages of music or movies? Would the additional oxygen molecules simulate a bigger cabinet?

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