Supravox RTF64 design options (long) - Page 4 - diyAudio
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Old 11th August 2006, 03:41 PM   #31
GM is offline GM  United States
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Quote:
Originally posted by schiller
I see that the measured T/S parameters from this site
http://www.yildiz.edu.tr/~ilkorur/speaker/supravox.txt

are much more different from these of the manufacturer. Has anybody else tried to measure them?
I haven't any experience with loydspeakers, could this kind of descrepancy between measured-published specs be typical?
Or in other words: should i take the published spes nicht for granded?

Thanks in advance
Konstantinos
Greets!

Not me, and yes, it's too often typical, though the industry as a whole considers +/- 10% exceptable, which these meet.

Anyway, the top sim is a T/S max flat using published specs and the bottom one is the measured specs in the same cab. It has marginally better acoustic efficiency, but the trade-off is somewhat degraded transient response which can be improved back to 'stock' with a minor increase in damping, so the spec differences are no big deal IMO for all but the perfectionists among us.

That said, it's not wise to assume that all driver published specs are within +/- 10% or that using them will be 'close enough' for max performance.

GM
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Old 11th August 2006, 06:34 PM   #32
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