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Old 01-16-2004, 08:18 AM   #6 of 12
Jack Gilvey
SVS Customer Service
 
Location: Jersey, USA
Join Date: Mar 1999
Local Time: 11:05 AM
Local Date: 12-05-2008
Posts: 6,253

Quote:
What confuses me is the linear excursion predicted by WinISD exceeds the Xmax at 20W of input power? I wouldn't expect that to occur since these drivers are rated at over 100W.

That's how much power the voice coil can handle, not a mechanical limit. What are the specifics of the alignment, and at what frequency is the driver maxing out?

Quote:
I have a question about xmax. Does the driver only acheive xmax at max output?

I guess the answer would be "yes" since, once at the maximum excursion of the driver...it ain't gonna get much louder.

Quote:
I'm trying to design a sub with an old SVS driver and it's very hard to keep it under the 28-29mm (peak to peak) xmax. So I'm wondering if this will only happen if I'm playing the sub over 100+ db's.

What level is your design program showing when Xmax is hit? At what frequency is Xmax occuring?
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