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Contents
Headphone features .............................................................................................. 2
HD 280 pro / HD 280 silver headphones ..................................................................... 2
HD 280 -13 headphones ................................................................................................. 2
Areas of application ............................................................................................... 3
Delivery includes .................................................................................................... 3
Safety instructions ................................................................................................. 4
Adjusting the headband ....................................................................................... 5
Folding up the headphones .................................................................................. 6
Cleaning the headphones ..................................................................................... 6
Replacing spare parts ............................................................................................ 7
Available accessories and spare parts .......................................................................... 7
Replacing the ear cushions ............................................................................................. 7
Replacing the headband padding ................................................................................. 7
Replacing the connecting cable ..................................................................................... 8
Converting the headphones into a headset ................................................................ 8
Specifications .......................................................................................................... 9
Frequency response curve .................................................................................. 10
Manufacturer declarations ................................................................................. 11
Thank you for choosing Sennheiser!
We have designed this product to give you reliable operation over many years. Over 60
years of accumulated expertise in the design and manufacture of high-quality electro-
acoustic equipment have made Sennheiser a world-leading company in this field.
Please take a few moments to read these instructions carefully, as we want you to
enjoy your new Sennheiser products quickly and to the fullest.