Sealed or ported

dholmes
dholmes Posts: 1,136
edited February 2005 in Subwoofer Hookup & Bass Management
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.
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  • gatemplin
    gatemplin Posts: 1,595
    edited February 2005
    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
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  • dholmes
    dholmes Posts: 1,136
    edited February 2005
    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.
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  • gatemplin
    gatemplin Posts: 1,595
    edited February 2005
    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
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  • Mjr7531
    Mjr7531 Posts: 856
    edited February 2005
    Don't forget to accomodate for the port, it takes up space too.
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  • Dr. Spec
    Dr. Spec Posts: 3,780
    edited February 2005
    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 Service
    SVS
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  • gatemplin
    gatemplin Posts: 1,595
    edited February 2005
    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
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  • EricH
    EricH Posts: 140
    edited February 2005
    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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