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Basic Question [message #25146]

Sat, 07 February 2004 12:06

Dean Kukral
Messages: 177
Registered: May 2009

Master

When you measure spl to determine if a speaker is "flat" or not, do you measure with C weighting or with A rating or what?

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Basic Answer - Frequency Weighting Curves [message #25147 is a reply to message #25146]

Sat, 07 February 2004 12:52

Wayne Parham
Messages: 18788
Registered: January 2001

Illuminati (33rd Degree)

Neither. Both "C" rating and "A" rating are filtered response curves, having rolloff at the top and bottom end of the audio spectrum. Of the two, the one closer to flat is "C", but extremes are still rolled off, particularly at low frequencies.

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