Sennheiser HMD 46 Instructions For Use Manual page 18

Specifications
Headphones
Transducer principle
Ear coupling
Frequency response
Impedance
Characteristic SPL
THD
Contact pressure
Microphone
Type
Transducer principle
Frequency response
Output voltage
Impedance
General data
Temperature range
Gewicht ohne Kabel
16
HMD 46-31
dynamic, open
supra-aural
20–14,000 Hz
300 per system
103 dB SPL at 1 kHz, 1 mW, mono
83 dB SPL at 1 kHz, 1 V
< 1 % at 95 dB SPL
(350–3,000 Hz)
approx. 3 N
MD 46-413
dynamic, noise-compensating
100–12,000 Hz
0.5 mV/Pa
200
Operation: –15 °C to 55 °C
Storage: –55 °C to 70 °C
150 g