IE 600 High-End In-Ear Earphones
Instruction Manual







Important safety instructions
- Read this instruction manual carefully and completely before using the product.
- Always include these safety instructions when passing the product on to third parties.
- Do not use an obviously defective product.
Preventing damage to health and accidents
- Protect your hearing from high volume levels. Permanent hearing damage may occur when headphones are used at high volume levels for long periods of time. Sennheiser headphones sound exceptionally good at low and medium volume levels.

- Do not insert the earphones too deep into your ears and never insert them without ear adapters. Always remove the earphones slowly and carefully from your ears.
- The product generates stronger permanent magnetic fields that could cause interference with cardiac pacemakers, implanted defibrillators (ICDs), and other implants. Always maintain a distance of at least 3.94710 cm between the product component containing the magnet and the cardiac pacemaker, implanted defibrillator, or another implant.

- Keep the product, accessories, and packaging parts out of reach of children and pets to prevent accidents. Swallowing and choking hazard.
- Do not use the product in an environment that requires your special attention (e.g. in traffic).
Preventing damage to the product and malfunctions
- Always keep the product dry and do not expose it to extreme temperatures (hair dryer, heater, extended exposure to sunlight, etc.) to avoid corrosion or deformation. The normal operating temperature is from -10 °C to 55 °C/14 °F to 131°F.
- The earphone housings are made of amorphous metal. As a result, at very cold or warm temperatures, the first skin contact can cause irritation for a short moment.
- Use only attachments/accessories/ spare parts supplied or recommended by Sennheiser.
- Clean the product only with a soft, dry cloth.
Intended use/Liability
These dynamic, closed in-ear headphones have been designed for use with high-quality portable music players and hi-fi systems. It is considered improper use when the product is used for any application not named in the corresponding product documentation. Sennheiser does not accept liability for damage arising from misuse or improper use of this product and its attachments/ accessories.
Before putting the product into operation, please observe the respective country-specific regulations.
Package contents
1 pair of IE 600 ear-canal phones with MMCX sockets
Connection cables with stereo jack plug, length approx. 1.25 m:
1 3.5 mm, unbalanced
1 4.4 mm, balanced
Ear adapters (in pairs):
3 silicone ear adapters, size S. M and L
3 Visco foam ear adapters with memory effect, size S, M, and L
1 instruction manual
1 certificate of authenticity
1 cable fastening clip
1 transport case
1 cleaning tool
Your Sennheiser IE 600
The perfect reproduction of sound, unadul-terated and clear – that is what the IE 600 stands for.
The IE 600 is a pair of earphones that follows in the footsteps of the audiophile IE 900, Sennheiser’s flagship in-ears. Based on the highly acclaimed TrueResponse transducers, the IE 600 features the “Dual 2 Chamber Absorber” resonator chambers that help the sound setup to have a direct and focused space. Voices come to the fore and build a bridge between you and the music so that the world around you disappears.
With decades of expertise and continuous research crafted into the dynamic 7 mm in-ear transducers, the IE 600 is capable of neutral sound reproduction and a yet powerful low bass range. The balanced reproduction delivers crisp trebles that do not analytically dissect the music. The IE 600 reflects Sennheiser’s passion for reproducing the perfect sound and for creating the experience of an intimate personal moment with music.
The IE 600 is manufactured by a team of experts at Sennheiser’s factory specialized in headphones in Tullamore, Ireland. As with any audiophile headphones, the tightest production tolerances apply. Every transducer is fully tested – first individually and then together after the right and left earphones have been hand-selected in pairs. The transducers of the right and left earphones are carefully selected to optimally match each other.
The transducers are enclosed in earphone housings that are unprecedented in audiophile earphones. Selective laser melting was used to build the housing layer by layer into the metal with amorphous structures. The result is an extremely hard material that is resilient against environmental influences. Due to its properties and the complex production process, it was primarily used in aerospace or medical technology. Besides, the metallic rough surface of the zirconium-copper-aluminum-niobium alloy is a real eye-catcher.
The IE 600 provides outstanding connectivity with Fidelity+ MMCX connections. These precise plug connections have been optimized for the mobile use of earphones. Due to the high sheathing of the plug connections, the filigree contacts are well protected against mechanical stress. On the device side, 3.5 mm and 4.4 mm jack plugs are available as standard.
The over-the-ear cable routing with adjustable ear hooks provides lightweight wearing comfort as well as reduced structure-borne noise compared to standard cables. So you can enjoy even long listening sessions with these unique Sennheiser IE 600 earphones.
Illustrations can be found on the fold-out page.

1. Selecting the ear adapters and inserting the earphones into the ears
The perceived sound quality including bass performance and the reduction of ambient noise depends to a large extent on the correct fit of the earphones in the ears. Figure out which ear adapter type and size suit you best in terms of both sound quality and wearing comfort.
- Mount the ear adapters to the earphones until they lock into place. You can choose between 2lock-in positions.
Silicone
- Select ear adapters of the correct size (S, M, or L) so that the earphones sit comfortably and securely in your ears.
Visco memory foam
The ear adapters made of Visco foam adapt optimally to the ear canal due to the expansion of the memory foam.
- Select ear adapters of the correct size (S, M, or L) and roll the ear adapters between your fingers until they are small. Insert the earphones into the ears and hold the earphones for at least 15 seconds so that the compressed Visco foam can expand and the earphones sit snuggly in your ears.
Ear hooks
- To provide strain relief for the cables, the cables are guided over the ears. You can carefully bend the ear hooks so that they fit comfortably and securely, even if you wear glasses, for example.
- Insert the earphones into the ears. Observe the markings “R” (right; with additional red ring) and “L” (left; with additional tactile dots) for correct assignment.
2. Selecting and connecting the connec-tion cable
Stereo jack plugs on the device
- 3.5 mm, unbalanced signal transmission, 3-pin
- 4.4 mm, balanced signal transmission, 5-pin
- Optionally available: 2.5 mm, balanced signal transmission, 4-pin
MMCX connectors on the earphones
- Hold the earphones firmly and pull the connectors straight out of the socket by overcoming a slight resistance. Always grasp the connectors by the connector housing and do not pull on the cable!
- When connecting, make sure that the markings “R” (right) and “L” (left) on the connectors match the earphones. The right ear canal phone is marked with a red ring and the left ear canal phone is marked with a tactile dot. Insert the connectors until they lock into place.
3. Optimum cable routing
4. Cleaning the earphones
For reasons of hygiene, the ear adapters should be replaced from time to time. (The Visco memory foam ear adapters only have durability of a few months due to their material properties). Spare parts are available from your Sennheiser partner. To find a Sennheiser partner in your country, search at www.sennheiser.com/service-support.
- Clean the product only with a soft, dry cloth.
- You can clean the ear adapters under lukewarm running water. Remove the foam pins before cleaning. Let the ear adapters and foam pins dry at room temperature for at least 12 hours before reassembling them and reattaching them to the earphones.
- To clean the sound channel grilles, use the cleaning tool (supplied) to carefully and lightly scrape over the grilles to remove dirt. Loosen the dirt without piercing the grilles.
5. Transporting and storing the IE 600
6. Pin assignment
Specifications
| Transducer principle | dynamic, Extra Wide Band (XWB) |
| Transducer size | 7 mm |
| Frequency response | 4 to 46,500 Hz |
| Frequency characteristic | diffuse-field equalized |
| Ear coupling | in-ear, closed |
| Impedance | 180 |
| Sound pressure level | 118 dB at 1 kHz, 1 Vrms |
| THD | < 0.06 % (1 kHz, 94 dB) |
| Attenuation | -26 dB |
| Cable | oxygen-free copper cable (OFC), para-aramid reinforced, ear hooks: TPU-coated |
| Connectors (see pin assignment on inside cover page) | gold-plated; on the earphones: MMCX connectors on the device: stereo jack plugs 3.5mm, unbalanced, 3-pin 4.4 mm, balanced, 5-pin |
| Weight | approx. 6 g per ear canal phone (without cable) |
| Operating temperature | -10 °C to +55 °C |
| The maximum value of the static magnetic field at the surface | 1.6 mT |
Manufacturer declarations
For more information on regulatory compliance markings, see the inside back cover.
Warranty
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 or contact your Sennheiser partner. The Australia and New Zealand Warranty Conditions can be found on the inside back cover.
In compliance with the following requirements
- General Product Safety Directive (2001/95/EC) Compliant to Sound Pressure Limits according to country-specific requirements.
EU declaration of conformity
- RoHS Directive (2011/65/EU) The full text of the EU declaration of conformity is available at the following Internet address: www.sennheiser.com/download.
UK declaration of conformity
- RoHS Regulations (2012)
Notes on disposal
- EU: WEEE Directive (2012/19/EU)
- UK: WEEE Regulations (2013)
The symbol of the crossed-out dumpster on the product, the (rechargeable) battery (if applicable), and/or the packaging indicates that these products must not be disposed of with normal household waste, but must be disposed of separately at the end of their service life. For the packaging, follow the regulations in your country for separating waste. Improper disposal of packaging materials can be harmful to your health and the environment.
The separate collection of waste electrical and electronic equipment, (rechargeable) batteries (if applicable), and packaging is intended to promote reuse and recycling and to prevent negative impacts on public health and the environment, for example, due to hazardous substances contained in these products. At the end of their service life, recycle electrical and electronic equipment and (rechargeable) batteries so that their materials can be reused and to prevent environmental pollution.
If (rechargeable) batteries can be removed without destroying them, you are obliged to dispose of them separately (see the product’s operating instructions for information on how to remove the batteries safely). Be especially careful when handling (rechargeable) batteries containing lithium, as these pose special hazards, such as the risk of fire and/or health risks if button cells are swallowed. Reduce battery waste as much as possible by using longer-life batteries or rechargeable batteries.
Further information on the recycling of these products can be obtained from your municipal administration, from the municipal collection points, or from your Sennheiser partner. You may also be able to return electrical or electronic equipment to your distributor if they are legally required to do so. By disposing of your batteries properly, you are helping to protect public health and the environment.
Compliance information
| Country/Region | Model: IE 600 |
| Europe | |
| United Kingdom | |
| China | |
| Vietnam | Ke tit ngay 1 thang 12 nam 2012, cac san pham &rot san xuat bell Sennheiser tuan UN:, Thong ti! 30/2011/TTBCT quy dinh ye giai han cho phep doi yeti met so chat dec hal trong cac san pham dien ya dien tit |
| Russia |
China RoHS
Trademarks
Sennheiser is a trademark of Sennheiser electronic GmbH & Co. KG, registered in the U.S. and other countries.
Fidelity’ MMCX is a product name from Delta Electronics Mfg. Corp. Other product and company names mentioned in the user documentation may be the trademarks or registered trademarks of their respective holders.
Product warranty
For AUSTRALIA and NEW ZEALAND, ONLY
Sennheiser Australia Pty Ltd provides a warranty of 24 months on these products. For the current warranty conditions, visit the Sennheiser website:
- Australia: https://en-au.sennheiser.com
- New Zealand: https://en-nz.sennheiser.com
Sennheiser goods come with guarantees that cannot be excluded under Australian and New Zealand Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. This warranty is in addition to other rights or remedies under the law. Nothing in this warranty excludes, limits, or modifies any remedy available to be consumer which is granted by law.
To make a claim under this contract, raise a case via the Sennheiser website:
- Australia: https://en-au.sennheiser.com/service-support-contact
- New Zealand: https://en-nz.sennheiser.com/service-support-contact
All expenses of claiming the warranty will be borne by the person making the claim. Sennheiser international warranty is provided by: Sennheiser Australia Pty Ltd (ABN 68 165 388 312) Level 14, Tower A Zenith Building, 821 Pacific Highway, Chatswood NSW 2067, Australia.

Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany www.sennheiser.com
Publ. 11/21, 592585/A01
References
Sennheiser — Headphones, Microphones, Wireless Systems
Sennheiser — Headphones, Microphones, Wireless Systems
Sennheiser Product Downloads
Sennheiser Service & Support
Sennheiser — Headphones, Microphones, Wireless Systems
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