Power type
According to IEC 60118-7: 2005
Battery current
1.0 mA
Maximum OSPL90
121 dB SPL
HFA OSPL90
117 dB SPL
Maximum full-on gain
58 dB
HFA full-on gain
52 dB
Reference test gain
40 dB
Less than
Bandwidth
200 Hz - 8 000 Hz
Equivalent input noise level
25 dB
500 Hz: 5 %
Total harmonic distortion
800 Hz: 5 %
1 600 Hz: 5 %
Attack Time: 1 ms
Dynamic AGC characteristics
Release Time: 700 ms
According to ANSI S3.22-2003 (Includes April 2007 Erratum)
Battery current (Battery current drain)
Maximum OSPL90
HFA OSPL90 (Average saturation output) 117 dB SPL
HFA full-on gain (Average full-on gain)
Reference test gain
Frequency range
Equivalent input noise level
(Equivalent input noise)
Total harmonic distortion
Dynamic AGC characteristics
1.0 mA
121 dB SPL
52 dB
40 dB
Less than
200 Hz - 8 000 Hz
25 dB
500 Hz: 5 %
800 Hz: 5 %
1 600 Hz: 5 %
Attack Time: 1 ms
Release Time: 700 ms
51