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Discussion in 'Subwoofer Box and Custom Fabrication' started by electrolytic, Mar 5, 2007.

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  1. electrolytic

    electrolytic Full Member

    ...........................
     

    Attached Files:

    electrolytic, May 16, 2007
    #161
  2. Ranger SVO

    Ranger SVO Full Member

    Did I see 9 cu ft?????????????????

    What in the world is that gonna fit in???

    That size would easily justify three or four woofers. And a Chev Tahoe
     
    Ranger SVO, May 16, 2007
    #162
  3. electrolytic

    electrolytic Full Member

    yes, it will fit my trunk, 96 taurus, that's what the mtx T9512-04 wanted.
     
    electrolytic, May 16, 2007
    #163
  4. Ranger SVO

    Ranger SVO Full Member

    Everyone I know will tell you that I LOVE big boxes, but there is a limit to my madness and you passed it. ^_^

    I think a box that big will work, but take advantage of the size, use more than one woofer. I see 3 5-inch vents (where are you gonna find 5-inch diameter vents) so that will easily justify 3 woofers. The graphs look good, so according to BassBox it will work. I personally have used up to a 7.5 cu ft box for a single 15 and it worked, but thats the biggest box I've ever built for a single speaker ( not counting my van, competition only).

    In just curious, what does MTX recommend?
     
    Ranger SVO, May 16, 2007
    #164
  5. electrolytic

    electrolytic Full Member

    i only ran it through once so far but the excursion and vent velocity wouldn't come down until i made the box bigger

    Thunder9512 Subwoofer Specifications
    Model T9512-44 T9512-04
    Description 12" Subwoofer 12" Subwoofer
    Impedance Dual 4 Ω 4 Ω
    Frequency Response 31 - 150Hz 31 - 150Hz
    RMS Power (Watts) 1,000 1,000
    Rec. RMS Amplifier
    Power (Watts) 500 - 1,000 500 - 1,000
    Voice Coil 4" 4"
    Magnet Weight (oz.) 260 260
    Mounting Depth 9-3/4" 9-3/4"
    Cut Out Diameter 11" 11"
    Sealed Enclosure Net Volume 1.0ft3-1.5ft3 1.0ft3-1.5ft3
    Vented Enclosure Net Volume 1.75ft3 1.75ft3
    Port Dimensions
    (Slot Port) 12-1/2"H x 2"W x
    27-5/16" L 12-1/2"H x 2"W x
    27-5/16" L
    Speaker Displacement .19ft3 .19ft3
    Port Displacement .39ft3 .393ft3
    Tuning Frequency 35Hz 35Hz
     
    electrolytic, May 16, 2007
    #165
  6. electrolytic

    electrolytic Full Member

    I was going to use pvc pipe, it comes in different sizes, but i'm not sure which exact sizes are available.
     
    electrolytic, May 16, 2007
    #166
  7. electrolytic

    electrolytic Full Member

    are these the sizes of pvc pipe generally available?
     

    Attached Files:

    electrolytic, May 16, 2007
    #167
  8. electrolytic

    electrolytic Full Member

    hmmm 24 inch round port? haha, i might have to try that in bassbox
     
    electrolytic, May 16, 2007
    #168
  9. aznboi3644

    aznboi3644 Full Member

    the 9500 series don't have much sound quality compared to the 13Av.2

    The MTX sub is more towards power handling and SPL.

    The 13Av.2 is designed for SQ with good power handling and output.


    I plugged it into WinISD...if it were me I'd do a 3 cu ft enclosure (net displacement) with a 14 in by 4 inch slot vent tuned to 35Hz. Vent velocity is not too high
     
    aznboi3644, May 16, 2007
    #169
  10. electrolytic

    electrolytic Full Member

    no go........
     

    Attached Files:

    electrolytic, May 16, 2007
    #170
  11. electrolytic

    electrolytic Full Member

    ...................
     

    Attached Files:

    electrolytic, May 16, 2007
    #171
  12. electrolytic

    electrolytic Full Member

    .....................
     

    Attached Files:

    electrolytic, May 16, 2007
    #172
  13. electrolytic

    electrolytic Full Member

    if i go 4 inch then the tuning goes way high
     
    electrolytic, May 16, 2007
    #173
  14. electrolytic

    electrolytic Full Member

    .............................
     

    Attached Files:

    electrolytic, May 16, 2007
    #174
  15. aznboi3644

    aznboi3644 Full Member

    what is wrong?? Looks like the vent velocity is way high for that sub in Bassbox.

    For me in WinISD with a 3 cu ft box tuned to 35Hz with a 14 by 4 inch port...the vent velocity is only at max 64ft/second at 35Hz
     
    aznboi3644, May 16, 2007
    #175
  16. electrolytic

    electrolytic Full Member

    it's recommending sealed too
     
    electrolytic, May 16, 2007
    #176
  17. aznboi3644

    aznboi3644 Full Member

    you have all your TS parameters wrong

    Thats why the sub isn't modeling well
     
    aznboi3644, May 16, 2007
    #177
  18. electrolytic

    electrolytic Full Member

    those are the specs, check them
     
    electrolytic, May 16, 2007
    #178
  19. electrolytic

    electrolytic Full Member

    ED-13Av.2

    Qts: .45
    Qes: .48
    Qms: 7.48
    Fs: 23.29 Hz
    Re: 2.81
    Vas: 55.79 L
    Mms: 257 g
    Bl: 14.81 T*m
    SPL: 83.50 dB
    Sd: 556 cm^2
    Xmax: 28.75 (Physical Linear) mm
    Voice Coil: 76MM mm

    Magnet Width: 7.50"
    Cutout Diameter: 12.00"
    Mounting Depth: 10.05"
    Weight: 45 lb
    Total Height: 10.05"
    Displacement: .12 ft^3
    Outside Diameter: 13.00"
     
    electrolytic, May 16, 2007
    #179
  20. aznboi3644

    aznboi3644 Full Member

    In post #170 at the bottom of page 17.

    The Vas is wrong.

    Ok after coverting a lot of those specs they are right but the vas is wrong.

    I dunno....I'm modeling up the 13Av.2 fine
     
    aznboi3644, May 16, 2007
    #180
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