Beyerdynamic DT 109 - Manual (Page 17)

17
Technical Specifications
Headphone
Transducer type . . . . . . . . . . . . . . . . . dynamic, moving coil
Frequency response . . . . . . . . . . . . . . 30 - 20,000 Hz
Nominal impedance . . . . . . . . . . . . . . 50 Ω / 400 Ω
Nominal SPL . . . . . . . . . . . . . . . . . . . 94 dB SPL
Input power rating . . . . . . . . . . . . . . 1000 mW 124 dB SPL
Ambient noise attenuation . . . . . . . . approx. 20 dBA
Headband pressure . . . . . . . . . . . . . . 4.5 N
Weight DT 100 / DT 109 . . 350 g
(without cable) DT 102 / DT 108 . . 250 g
DT 108 / DT 109
Microphone
Transducer type . . . . . . . . . . . . . . . . . dynamic, moving coil
Frequency response . . . . . . . . . . . . . . 40 - 12,000 Hz
Polar pattern . . . . . . . . . . . . . . . . . . . hypercardioid
Noise cancellation . . . . . . . . . . . . . . . > 30 dB
Output voltage at a distance of 5 cm approx. 2.5 mV
Nominal impedance . . . . . . . . . . . . . . 200 Ω (optional 600 Ω)
Nominal output impedance . . . . . . . . ≥ 1000 Ω (3000 Ω)
Weight incl. boom arm . . . . . . . . . . . 48 g
Frequency response curve
Polar pattern
= ^