HD 280
-silver
-pro
-13
Instruction Manual
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Headphone features
HD 280 pro / HD 280 silver headphones
y Closed dynamic headphones
y Accurate, linear sound reproduction for critical monitoring
applications
y Low impedance headphones (64 Ω impedance)
y Space-saving design features collapsible, rotating earcups
y Up to 32 dB of ambient noise attenuation
y Neodymium magnets for high maximum SPL
(113 dB/1 V
)
rms
y Very comfortable, even if used for long periods due to
y very light weight
y soft, circum-aural ear cushions
y padded, adjustable headband
y Single-sided, coiled cable with 3.5 mm jack plug and lockable
adapter to 1/4“ (6.3 mm) jack plug
y Very rugged with user-replaceable parts
HD 280 -13 headphones
As HD 280 PRO, but high impedance variant (300 Ω
impedance).
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Areas of application
The headphones not only effectively attenuate external noise
but also minimise spillage from the headphones to the outside
world. They are especially suitable for
y use as monitoring headphones in a noisy environment
y broadcast and TV applications
y film and theatre applications
y recording applications
Delivery includes
y Headphones
y Adapter to 1/4“ (6.3 mm) jack plug
y Instructions for use
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Safety instructions
Attention! High volume!
This is a professional pair of headphones. Commercial use is
subject to the rules and regulations of the trade association
responsible. Sennheiser, as the manufacturer, is therefore
obliged to expressly point out possible health risks arising from
use.
This system is capable of producing sound pressure exceeding
85 dB(A). 85 dB(A) is the sound pressure corresponding to the
maximum permissible volume which is by law (in some
countries) allowed to affect your hearing for the duration of a
working day. It is used as a basis according to the specifications
of industrial medicine. Higher volumes or longer durations can
damage your hearing. At higher volumes, the duration must be
shortened in order to prevent damage.
The following are sure signs that you have been subjected to
excessive noise for too long a time:
y You can hear ringing or whistling noise in your ears!
y You have the impression (even for a short time only) that
you can no longer hear high frequencies!
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Adjusting the headband
For good transmission quality and best possible comfort, the
headband has to be adjusted to properly fit your head. To do
so, adjust the headband via its snap-in locking mechanism.
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Folding up the headphones
For space-saving transportation, the headphones can be folded
up in three different ways:
1. To fold up the headphones as compact as possible, tuck the
earcups between the headband (variant A and B).
A
Note:
To fold up the headphones as shown in variant B, pull out
the headband completely.
B
2. To fold up the headphones as flat as possible, the earcups
can be rotated by 90°.
Cleaning the headphones
To clean the headphones, use a soft, damp cloth. If necessary,
the headphones can be cleaned with soapy water (use a mild
cleanser such as washing-up liquid).
Note:
Never use solvent-containing cleansers.
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Replacing spare parts
Available accessories and spare parts
y Ear cushions
y Headband padding
y Connecting cable
Replacing the ear cushions
̈ Grasp behind the ear cushions and pull them up and away
from the earcups. Slide the new ear cushions onto the
earcups.
Replacing the headband padding
̈ Pull the Ziploc type fastening strips of the headband
padding apart, as shown in the diagram on the left, and
remove the worn headband padding.
̈ Put the new headband padding around the headband.
̈ Pull the two edges of the headband padding together so
that the fastening strips slightly overlap.
̈ Join the fastening strips.
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Replacing the connecting cable
Replace the connecting cable if it is damaged. To do so, please
proceed as follows:
ᕡ
̈ Remove the ear cushion. Grasp behind the ear cushion and
pull it up and away from the earcup.
̈ Loosen the screw ᕡ and remove it.
̈ Remove the cover from the earcup ᕢ.
̈ Pull the connector ᕣ out of the socket.
ᕢ
̈ Remove the antikink protection of the connecting cable
from the holding device ᕤ.
ᕣ
̈ Insert the antikink protection of the new connecting cable
into the holding device.
̈ Plug the connector ᕣ of the new connecting cable into the
socket as shown in the diagram on the left.
̈ Put the cover back onto the earcup ᕢ.
̈ Replace the screw ᕡ and tighten it.
̈ Slide the ear cushion onto the earcup.
ᕤ
Converting the headphones into a headset
If you wish to convert your headphones into a headset, please
contact your Sennheiser service partner who will equip the
headphones with a microphone.
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Specifications
HD 280 pro
HD 280-13
HD 280 silver
Classification
268-7-IEC-DCSC-64R0-2
268-7-IEC-DCSC-03R2-2
(as per IEC 268-7)
Transducer principle
Impedance
dynamic
dynamic
64 Ω (as per IEC 268-7)
300 Ω (as per IEC 268-7)
0.5 W (as per IEC 268-7)
circum-aural
Long-term max. input power 0.5 W (as per IEC 268-7)
Ear coupling
circum-aural
Frequency response
8 Hz – 25 kHz
8 Hz – 25 kHz
(–10 dB referred to 1 kHz)
Sound pressure level
102 dB (as per IEC 268-7)
102 dB (as per IEC 268-7)
113 dB / 1 V
107 dB / 1 V
rms
rms
Ambient noise attenuation max. 32 dB
max. 32 dB
THD
< 0.1 % (at 51 kHz, 100 dB SPL) < 0.1 % (at 1 kHz, 100 dB SPL)
Weight
approx. 285 g
approx. 6 N
approx. 285 g
approx. 6 N
Contact pressure
Length of coiled cable
min. 1 m
max. 3 m
min. 1 m
max. 3 m
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Frequency response curve
Diffuse field frequency response
dB
(1Pa/V)
Hz
10
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Manufacturer declarations
Warranty
2 years
Approval
Sennheiser electronic GmbH & Co. KG declare that this device is
in compliance with the applicable CE standards and
regulations.
Before putting the device into operation, please observe the
respective country-specific regulations!
WEEE Declaration
Please dispose of this product at the end of its operational
lifetime by bringing it to your local collection point or recycling
centre for such equipment.
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Sennheiser electronic GmbH & Co. KG
30900 Wedemark, Germany
Phone +49 (5130) 600 0
Fax +49 (5130) 600 300
Printed in Germany
Publ. 06/06
086082
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