Technical, Data – Sennheiser HD 428 User Manual
Page 2
Technical
Data
Model
HD 428
EAN
40 44155 04347 1
UPC No.
6 15104 16793 3
Article Number
502765
Transducer principle
Dynamic, closed
Frequency response
18-22000 Hz
Impedance
32
W
THD
<0.1% (1kHz/100dB)
Sound pressure level (1 kHz / 1V
rms
)
110 dB (1kHz/1V
rms
)
Weight
390 gm
Cable length
3 m single-sided OFC cable with 3.5 mm gold straight plug /
6.3 mm gold adaptor plug
Connector
3.5 mm straight plug
Content of Delivery
HD 428 headphones
6.3mm adaptor plug
Packaging
Design
Blister
Dimensions of individual pack (W x H x D)
205 x 235 x 95 mm
Dimensions of multi-pack (W x H x D)
642 x 460 x 286 mm
No. of products per multi-pack
12
Packaging languages
English, German, French, Spanish, Italian, Dutch & Portuguese
iPhone and iPod are trademarks of Apple Inc., registered in the U.S. and other countries.
TBA
HD 428.indd 2
5/5/09 2:22:42 PM
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