Ear Canal Phones
CX 980
Instruction manual
Important safety instructions
In order to prevent hearing damage and health problems:
왘 Set the volume to a low level before inserting the ear
canal phones into your ears.
왘 Avoid listening at high volume levels for long periods of
왘 Keep the ear canal phones at least 1.2” (3 cm) from
cardiac pacemakers or implanted defibrillators.
In order to prevent accidents:
왘 Do not wear the ear canal phones in an environment that
requires your special attention (e.g. in traffic).
왘 Keep the ear canal phones out of reach of children who
could swallow smaller pieces.
In order to prevent damage to the ear canal phones:
왘 Do not expose the ear canal phones to heat (hair dryer,
radiator, etc.) and do not store in direct sunlight for
extended periods.
왘 Protect the ear canal phones from moisture.
Delivery includes
1 pair of CX 980 ear canal phones with
volume control
3 pairs of ear adapters, white ring
(size S, M, L)
3 pairs of ear adapters, pink ring
(size S, M, L)
1 pair of ear adapters, memory foam
2 pairs of spare
diaphragm guards
1 cleaning tool
1 cable clip
1 in-flight adapter
1 carrying case
1 storage pouch for ear adapters
1 instruction manual
Accessories are available from your Sennheiser
partner. A list of suitable accessories can be found on
our website at www.sennheiser.com.
Selecting and changing the
ear adapters
To ensure the best possible sound performance, the ear
adapters must seal off your ear canals. You can choose
between the following types of ear adapters:
• Silicone rubber, white ring
natural bass response
• Silicone rubber, pink ring
punchy bass response
• Memory foam
optimum sound, punchy bass response, comfortable and
secure fit
왘 Select ear adapters of the correct size and with the
desired characteristics.
왘 Attach the ear adapters to the ear canal phones.
Inserting ear canal phones into the ears
WARNING! Interference with cardiac pacemakers
The headphones generate a magnetic field
which could interfere with cardiac pacemakers
and implanted defibrillators.
왘 Keep the earphones at least 1.2” (3 cm)
away from cardiac pacemakers and
implanted defibrillators.
Connecting the ear canal phones to
the audio source
왘 Connect the 3.5 mm jack plug of the cable directly to your
audio source or use a suitable adapter.
3.5 mm jack socket
Title 01
In-flight adapter
Adjusting the volume and routing the
WARNING! Hearing damage due to high volumes!
Listening at high volume levels for long periods
can lead to permanent hearing defects. Please
protect your hearing, Sennheiser headphones
also sound exceptionally good at low volumes.
왘 Set the volume to a medium level (see
Transporting the ear canal phones
왘 For space-saving and safe transportation, stow the ear
canal phones in the carrying case as shown.
Cleaning the ear canal phones
CAUTION! Danger of damage to the ear canal phones
Solvents and other cleansing agents can
damage your ear canal phones.
왘 Do not use any solvents or cleansing agents.
For reasons of hygiene, clean your ear canal phones
왘 Use only a slightly damp cloth to clean the ear canal
왘 Carefully remove buildup from the ear canal phones
and ear adapters.
Replacing the diaphragm guards
The diaphragm guards protect the diaphragms of the ear
canal phones and contribute to the sound quality of the
ear canal phones. Ensure that the diaphragm guards are
constantly installed in the ear canal phones.
왘 Replace dirty diaphragm
guards using the supplied
cleaning tool or tweezers.
Transducer principle
dynamic, ear canal phones
Frequency response
16 to 24,000 Hz
Nominal impedance
32 Ω
Sound pressure level at
1 kHz and 1 volt
115 dB
THD at 1 kHz, 100 dB SPL < 0.1%
3.5 mm stereo jack plug,
Cable length
1.2 m
approx. 20 g
Manufacturer Declarations
Sennheiser electronic GmbH & Co. KG gives a warranty of
24 months on this product.
For the current warranty conditions, please visit our website at www.sennheiser.com under “Service & Support” or
contact your Sennheiser partner.
Declaration of Conformity
This product is in compliance with the essential requirements and other relevant provisions of directives:
• EMC Directive (2004/108/EC)
• RoHS Directive (2002/95/EC)
• WEEE Directive (2002/96/EC)
The declarations are available at www.sennheiser.com.
Before putting the device into operation, please observe the
respective country-specific regulations!
The product meets the following requirements:
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
Printed in China
Publ. 08/09