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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.
2016 Moomba Mojo
2006 Supra 24SSV - Traded
Xm9's on the outsides of the tower now and add some xm7's towards the center later on.
2005 mobius lsv 2900lbs ballast
2005 mobius lsv
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
How low do each hang below the tower? I can't find dimensions on the Exile web site.
Sent from my iPhone using Tapatalk
2010 MOOMBA LSV
340 CAT
ACME 1235
3100#'s
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
2006 Supra 24 Gravity Games - Sold
2015 Supra SE450 - Sold
here is a pic of mine not sure it helps as there are off to the side on a v2
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A Day at the Lake...Priceless
A Day in Powder...Endless
Joe V
2012 Möbius XLV~ Loaded & Exiled
2007 Outback V ~ sold
Looks sharp JM. Those towers leave lots of headroom!
2016 Moomba Mojo
2006 Supra 24SSV - Traded
A Day at the Lake...Priceless
A Day in Powder...Endless
Joe V
2012 Möbius XLV~ Loaded & Exiled
2007 Outback V ~ sold