Sound calibration

Introduction

Table: impedances and sensitivity @ 1mW and @ 1V for Headphones

Model

Impedance (Ohm)

Sensitivity @ 1mW (dB SPL)

Sensitivity @ 1V (dB SPL)

Audiological SPL

AKG_K271_MKII

55

91

104 (+12.5 dB)

N

SENNHEISER_HD600

300

92

97 (+5.2 dB)

N

SENNHEISER_HD100

26

94

110 (+15.8 dB)

N

BEYERDYNAMIC_DT_770_PRO

80

96

107 (+11.0 dB)

N

SENNHEISER_HDA280

37

103

117 (+14.3 dB)

Y

SENNHEISER_HDA300

23

108

124 (+16.4 dB)

Y

RADIOEAR_P4492

10

107

127 (+20 dB)

Y

TELEPHONICS_TDH-39P

10

108

128 (+20 dB)

Y