Sennheiser HMD 280 PRO, Instructions For Use Manual

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25
dB
(1 Pa/V)
Hz
24
dB
(V/Pa)
Hz
-100
-95
-90
-85
-80
-75
-70
-65
-62.5
-60
-55
-50
90 200 500 1k 2k 5k 10k 20k
Frequency response curves and polar diagram
Diffuse field frequency response – Headphones
Polar diagram – Microphone
Frequency response curve – Microphone
(measured in the near field with artificial mouth B&K 4219)
Specifications
HMD 280 PRO / HMD 281 PRO HMD 280-13 / HMD 281-13
Headphones
Classification
(as per IEC 268-7)
268-7-IEC-DCSC-64R0-2/-1 268-7-IEC-DCSC-03R2-2/-1
Transducer principle dynamic dynamic
Impedance 64
Ω
(as per IEC 268-7) 300
Ω
(as per IEC 268-7)
Long-term max. input power 0.5 W (as per IEC 268-7) 0.5 W (as per IEC 268-7)
Ear coupling circum-aural circum-aural
Frequency response
(–10 dB referred to 1 kHz)
8 Hz—25 kHz 8 Hz—25 kHz
Sound pressure level 102 dB (as per IEC 268-7) 102 dB (as per IEC 268-7)
113 dB / 1 V
rms
107 dB / 1 V
rms
Ambient noise attenuation max. 32 dB max. 32 dB
THD < 0.1 % (at 1 kHz, 100 dB SPL) < 0.1 % (at 1 kHz, 100 dB SPL)
Weight approx. 310 g / 245 g approx. 310 g / 245 g
Contact pressure approx. 4 N approx. 4 N
Length of coiled cable min. 1 m min. 1 m
max. 3 m max. 3 m
Microphone
Transducer principle dynamic dynamic
Type of microphone pressure-gradient pressure-gradient
Pick-up pattern super-cardioid (see polar diagram) super-cardioid (see polar diagram)
Nominal impedance 200
Ω
200
Ω
Close-talking sensitivity –63 dBV/Pa (at 1 kHz) –63 dBV/Pa (at 1 kHz)
0.7 mV/Pa (at 1 kHz) 0.7 mV/Pa (at 1 kHz)
Near field frequency response 50–13,500 Hz 50–13,500 Hz