thread: SBIR
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Old 15th January 2012
Gear Guru
Ethan Winer's Avatar


Originally Posted by akebrake View Post
Measured with a software measuring instrument like REW, Fuzz Measure, TEF etc. the "starting time" (acoustical center) of a loudspeaker is often behind the front baffle at lo frequencies when seen from the listener / measuring position. E.g. Low frequencies are "late".
Sure, but that's for listeners in front of the speaker. The "lateness" is also due to inherent delays added by the crossover. But I'm pretty sure that SBIR from a boundary behind the speaker is measured from the edge of the box.

I sure wish someone would measure this already. heh