A u t h e n t i c E x c e l l e n c e ™
halfway between the listening position and the back wall. These readings must
be averaged together. Expect measurements taken close to walls to show sub-
stantially more low frequency energy than those taken near the center of the
room. Use the dB-C weighting, or, if available, the “Flat”/ non-weighted scale of
your instrument. The graphic above compares dB-A & dB-C weighting. The more
commonly used dB-A scale is intended to correspond to the ear’s “frequency
response” at low SPL and should never be used to calibrate low frequency levels.
Please note that, even at 50 Hz, the dB-C scale is still down approximately 2 dB
relative to 800 Hz. Don’t be disappointed, therefore, if your dB-C scale measure-
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ActivXo I n stal l ation and Car e
G u ide
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ActivXo I n stal l ation and Car e
G u ide
A u t h e n t i c E x c e l l e n c e ™
Содержание Activ XO
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Страница 39: ...S e c t i o n 5 W a r r a n t y W i l s o n A u d i o S p e c i a l t i e s...
