Sennheiser 500643 Headphones User Manual


 
16
Technical data
Converter principle dynamic, closed
Coupling to the ear circumaural
Transmission range 8 – 28,000 Hz
Rated impedance active/
passive 750/150 Ohm
Sound pressure levels at
1 kHz and 1 volt 108 dB SPL
Harmonic distortion at
1 kHz 0,1 %
Cable plug 3.5-mm stereo plug
Inflight adapter 2 x 3.5-mm mono plug
Audio adapter 6.3-mm stereo plug
Cable length 1.4 m
Weight without cable
and battery 275 g
Voltage battery/
rechargeable battery
(Micro/AAA) 1.2 – 1.5 V
Passive sound insulation 32 dB
Sound compensation
by NoiseGard 23 dB
PXC450_517600_0806_SP6.book Seite 16 Donnerstag, 13. September 2007 10:26 10