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  1. #21
    Join Date
    Mar 2010
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    Arkansas
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    Coming from a dorky profession myself, i read Davids comment as one dork telling another dork he made a calculation error.

    I did read it and know it would bring criticism, though. I mean half of America is cool with being fed non factual info, right

    But Mike, although often too technical, i appreciate the balance here and even the learning experience.

    Sent from my DROID RAZR using Tapatalk 2
    Last edited by KG's Supra24; 09-19-2012 at 10:14 PM.
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  2. #22
    Join Date
    Sep 2009
    Location
    newnan, GA
    Posts
    437

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    Xm9's on the outsides of the tower now and add some xm7's towards the center later on.

    2005 mobius lsv 2900lbs ballast
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  3. #23
    Join Date
    May 2009
    Location
    Dallas, TX
    Posts
    887

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    ga,
    I'm not crazy about mixing a 6.5" and 8" speaker on the same tower. Here's why. The SD (effective surface area) of the smaller XM7 is a little more than 19 sq.in. The SD of the larger XM9 is about 38 sq.in. Doubling the surface area usually results in a difference approaching 3 dB. Side by side I can tell you there is a big difference between the two. To put +3 dB into perspective that is equivalent to doubling the amplifier power. So here lies the challenge. You would need twice the power for the XM7 to reach the same amplitude as the XM9. That places the XM7 in a vulnerable power handling position. Or, you allow the XM9 to naturally dominate the XM7. In that case you have invested alot in additional speakers and power to only have a very modest increase in output. I have to recommend staying with symmetrical sizes whenever possible, especially in a one on one scenario.

    David

  4. #24
    Join Date
    Feb 2012
    Location
    St. Albert, Alberta, Canada
    Posts
    170

    Default

    How low do each hang below the tower? I can't find dimensions on the Exile web site.


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  5. #25
    Join Date
    Jan 2010
    Location
    North Texas
    Posts
    2,844

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    xm9

    Hanging Height: 10.5 inches (266.3 mm)
    Speaker Height: 9.9 inches (251.2 mm)
    Width: 10.0 inches (253.7 mm)
    Depth: 10.2 inches (257.9 mm)
    * *
    Hanging Weight: 10.8 pounds (4.9 kg)


    xm7


    Hanging Height: 10.25 inches (260.35 mm)
    Speaker Height: 9.0 inches (228.6 mm)
    Width: 8.875 inches (225.425 mm)
    Depth: 9.5 inches (241.3 mm)

    Hanging Weight: 6.7 pounds (3.04 kg)
    Last edited by dusty2221; 09-20-2012 at 10:33 AM.
    2006 Supra 20 - Sold
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    2015 Supra SE450 - Sold

  6. #26
    Join Date
    Jan 2008
    Location
    Keuka Lake, NY
    Posts
    7,692

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    here is a pic of mine not sure it helps as there are off to the side on a v2


    A Day at the Lake...Priceless
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    Joe V
    2012 Möbius XLV~ Loaded & Exiled
    2007 Outback V ~ sold

  7. #27
    Join Date
    Mar 2010
    Location
    Arkansas
    Posts
    3,952

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    Looks sharp JM. Those towers leave lots of headroom!
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    2006 Supra 24SSV - Traded

  8. #28
    Join Date
    Jan 2008
    Location
    Keuka Lake, NY
    Posts
    7,692

    Default

    Quote Originally Posted by KG's Supra24 View Post
    Looks sharp JM. Those towers leave lots of headroom!
    except with the playpen, i had a hat on and did not see the tower coming from the bow and almost knocked myself RTFout....it hurt and saw stars, the v2 is SOLID
    A Day at the Lake...Priceless
    A Day in Powder...Endless


    Joe V
    2012 Möbius XLV~ Loaded & Exiled
    2007 Outback V ~ sold

  9. #29
    Join Date
    Jul 2008
    Location
    Snellville, GA & Lake Sinclair
    Posts
    8,419

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    Quote Originally Posted by kg's supra24 View Post
    looks sharp!
    agreed!!!!

  10. #30
    Join Date
    Sep 2009
    Location
    newnan, GA
    Posts
    437

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    Quote Originally Posted by EarmarkMarine View Post
    ga,
    I'm not crazy about mixing a 6.5" and 8" speaker on the same tower. Here's why. The SD (effective surface area) of the smaller XM7 is a little more than 19 sq.in. The SD of the larger XM9 is about 38 sq.in. Doubling the surface area usually results in a difference approaching 3 dB. Side by side I can tell you there is a big difference between the two. To put +3 dB into perspective that is equivalent to doubling the amplifier power. So here lies the challenge. You would need twice the power for the XM7 to reach the same amplitude as the XM9. That places the XM7 in a vulnerable power handling position. Or, you allow the XM9 to naturally dominate the XM7. In that case you have invested alot in additional speakers and power to only have a very modest increase in output. I have to recommend staying with symmetrical sizes whenever possible, especially in a one on one scenario.

    David
    Gotcha was mostly considering head room

    2005 mobius lsv 2900lbs ballast
    2005 mobius lsv

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