Standard type
Basic frequency response curve
According to IEC 60118-7:2005
120
110
100
90
80
70
60
50
100
1k
Frequency [Hz]
Frequency response curve
According to ANSI S3.22-2003 (Includes April 2007 Erratum)
120
110
100
90
80
70
60
50
10k
100
1k
10k
Frequency [Hz]
49