Owner's Manual

ETYMOTIC®
Test System
ER Test System
Rev 4.11.6.0
G.R.A.S. RA0045
Ear Simulator*
Drive Level: 200 mV
Date: 10/14/2019
Certified By: /
~5:
*G. R.A .S. Ocluded Ear
Simulator performs
according to IEC
60318-4: 2010 and
ANSI s3.25-2004
(R2014) standards
LEFT SN
043621
Sensitivity.
97.4 dB
THD :
0.87%
Polarity:
POSITIVE
RIGHT SN
046718
Sensitivity:
97.4 dB
THO :
0.75%
Polarity:
POSITIVE
a: +1
Cl)
~ -1
Test Parameters
Sensitivity: The output in dB SPL at 1 kHz with
200 mV drive.
THO: The Total Harmonic Distortion of the
earphone when driven with a 1 kHz sine wave at
100 dB SPL.
Polarity: A positive voltage results in a
positive acoustic output.
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Frequency (Hz)
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Frequency (Hz)
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Frequency (Hz)
© 2019 Etymotic Research, Inc.
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