|Multi-Way Conventional loudspeakers with crossovers|
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|26th December 2007, 02:08 AM||#1|
Join Date: Nov 2006
dB/W/M conversion - M vs 0.5 M ??
After many hours of hunting, I found some very basic specs on a set of drivers I'm intersted in.
BUT, they are quoting the sensitivity as 97 dB/W/0.5 M
So, is it possible to convert this to the more common dB/W/M ??
Even if someone can give me a vague idea of what they could come out as I'd be gratefull.
Doubt it matters but just in case;
The speakers are actually a set of car audio seperates.
|26th December 2007, 06:12 AM||#2|
Join Date: Feb 2004
Location: Chinook Country.Alberta
er I think this is the relationship....
intensity varies as 1/R², where R is the distance in meters (or feet) from the source.
so at .5 metres the intensity will be 4 X's as much at 1 metre.
and a power factor of 10 is needed to double the apparent loudness
what does this mean to you? At 1W@1m, you will be effectively lowering the sensitivity to 91dB.
stew ☮ -"A sane man in an insane world appears insane."
Let's help Dave and Ruth
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