The Sennheiser HDR 120 offers exceptional wireless audio with a frequency response of 22Hz-19.5kHz, ensuring crisp sound. Its NiMH battery provides reliable power, while the ergonomic design guarantees comfort during extended use. This model is designed for seamless connectivity and enhanced listening experiences, supported by a comprehensive user manual.
1.1 Overview of the Sennheiser HDR 120
The Sennheiser HDR 120 is a wireless headphone system designed for high-quality audio reproduction. It features a frequency response of 22Hz to 19,500Hz, ensuring clear and immersive sound. With a NiMH battery, it offers reliable performance and extended listening sessions. The ergonomic design provides comfort, while the transmitter ensures stable wireless connectivity, making it ideal for home entertainment and audio enthusiasts.
1.2 Key Features and Benefits
The Sennheiser HDR 120 boasts a robust wireless connection with a frequency response of 22Hz-19.5kHz, delivering clear and detailed audio. Its NiMH battery ensures long-lasting use, while the ergonomic design offers comfort for extended listening sessions. The transmitter provides stable connectivity, and the headphones feature a sensitivity of 110dB, making them ideal for immersive home audio experiences.
Technical Specifications
The Sennheiser HDR 120 features a frequency response of 22Hz-19.5kHz, NiMH battery technology, and a sensitivity of 110dB. It offers a signal-to-noise ratio of 68dB for clear audio.
2.1 Frequency Response and Sound Quality
The Sennheiser HDR 120 delivers a wide frequency response of 22Hz to 19.5kHz, ensuring detailed sound reproduction. With a signal-to-noise ratio of 68dB, it offers clear audio with minimal background noise, providing an immersive listening experience for music and media.
2.2 Sensitivity and Impedance
The Sennheiser HDR 120 boasts a sensitivity of 110 dB, enabling high audio levels with minimal power input. With an impedance of 32 ohms, it ensures efficient performance across various devices, delivering clear and balanced sound while maintaining compatibility with a range of audio sources for an optimal listening experience.
2.3 Battery Technology and Life
The Sennheiser HDR 120 utilizes a Nickel-Metal Hydride (NiMH) battery, providing up to 24 hours of continuous playback. The battery fully charges in approximately 16 hours. An indicator light signals when charging is complete, ensuring users are informed. This reliable technology offers extended listening sessions with minimal downtime, enhancing the overall wireless experience.
Installation and Setup
Installation involves unboxing, connecting the transmitter to an audio source, and pairing the headphones. The process ensures quick setup for seamless wireless audio experience.
3.1 Unboxing and Initial Setup
Unbox the Sennheiser HDR 120, including the headphones, transmitter, power cable, and audio cables. Charge the NiMH batteries and connect the transmitter to your audio source. Follow the manual for pairing, ensuring a smooth initial setup for optimal wireless audio performance.
3.2 Connecting to Audio Sources
Connect the Sennheiser HDR 120 transmitter to your audio source using RCA or 3.5mm cables. Ensure the transmitter is powered on and paired with the headphones. Adjust the audio source’s volume and verify the connection by playing music or video. Proper setup ensures high-quality wireless audio transmission to the headphones.
3.3 Pairing and Syncing
To pair the Sennheiser HDR 120 headphones, press and hold the pairing button on the transmitter until the LED flashes. Place the headphones in pairing mode by pressing and holding the power button. Once synced, the LED will stabilize, indicating a successful connection. Ensure the transmitter is properly connected to your audio source for seamless operation.
Operating Instructions
The Sennheiser HDR 120 operates via intuitive controls. Adjust volume, power, and settings using the built-in buttons. Follow the manual for guidance on essential functions and usage.
4.1 Controls and Functions
The Sennheiser HDR 120 features intuitive controls for volume adjustment, power management, and pairing. The multifunction button handles playback and call functions, while the LED indicator provides status updates. The headphones also support automatic shut-off to conserve battery life, ensuring efficient operation and prolonged usage.
4.2 Adjusting Settings
The Sennheiser HDR 120 allows users to customize their listening experience by adjusting settings via the transmitter. Volume levels, equalization, and balance can be fine-tuned for optimal audio quality. The LED indicator on the headphones provides feedback during adjustments. Firmware updates can also be performed to enhance functionality and ensure compatibility with connected devices.
4.3 Using the Transmitter
The TR 110 transmitter enables wireless audio transmission at 863-865 MHz. Connect audio sources via the 3.5mm input jack. The transmitter supports multi-receiver mode, allowing multiple headphones to connect simultaneously. Ensure the transmitter is powered on and paired with the headphones for optimal performance. Use the LED indicators to monitor connection status and audio transmission quality.
Troubleshooting Common Issues
Troubleshoot common issues like no sound, connectivity problems, or battery issues by checking connections, recharging batteries, and resetting devices. Ensure proper pairing and audio source selection.
5.1 No Sound or Poor Audio Quality
If experiencing no sound or poor audio quality, ensure the headphones are properly paired with the transmitter and the audio source is correctly connected. Check the battery level and recharge if necessary. Verify the transmitter is powered on and within range. Avoid physical barriers that may interfere with signal strength. Restart both the headphones and transmitter to resolve connectivity issues.
5.2 Connectivity Problems
For connectivity issues, ensure the transmitter is powered on and within range of the headphones. Check that both devices are properly paired and that no physical barriers are obstructing the signal. Restart both the headphones and transmitter to reset the connection. If problems persist, consult the user manual or contact Sennheiser support for further assistance.
5.3 Battery and Charging Issues
If the HDR 120 batteries aren’t charging, ensure the charging port is clean and free of debris. Verify the transmitter is functioning correctly and properly connected to power. Allow the headphones to charge for at least 15 minutes before testing. If issues persist, refer to the manual or contact Sennheiser support for assistance or replacement options.
Maintenance and Care
Regularly clean the headphones with a soft cloth to prevent dirt buildup.
Store them in a protective case when not in use.
Update firmware periodically for optimal performance.
6.1 Cleaning the Headphones
To maintain optimal performance, gently clean the Sennheiser HDR 120 headphones with a soft, dry cloth. For stubborn dirt, dampen the cloth slightly but avoid harsh chemicals. Regularly wipe the ear cushions and headband to prevent sweat and dust buildup. Ensure the headphones are dry before storage to prevent moisture damage and maintain sound quality.
6.2 Storing the Headphones
Store the Sennheiser HDR 120 headphones in a cool, dry place to prevent moisture damage. Avoid exposure to direct sunlight or extreme temperatures. Keep them in the original storage case when not in use to protect against dust and physical damage. Ensure the headphones are fully dry before storage to maintain optimal performance and longevity.
6.3 Updating Firmware
To update the firmware of your Sennheiser HDR 120 headphones, visit the official Sennheiser website and download the latest firmware version. Connect the headphones to your computer using the provided cable, then follow the on-screen instructions to complete the update. Ensure the process is uninterrupted for a successful installation. Consult the manual or contact support for further assistance.
Accessories and Compatibility
The Sennheiser HDR 120 includes a 6.3mm jack, mini 3.5mm jack, and transmitter for versatile connectivity. Compatible with TVs, radios, and audio devices, it offers optional accessories for enhanced functionality.
7.1 Compatible Devices
The Sennheiser HDR 120 is compatible with TVs, radios, and home entertainment systems via its 6.3mm and 3.5mm audio jacks. It works seamlessly with devices equipped with RCA or SCART connections, ensuring versatile connectivity. The included transmitter TR 110 supports frequencies between 863-865 MHz, enabling reliable wireless audio transmission across various multimedia sources.
7.2 Optional Accessories
Optional accessories for the Sennheiser HDR 120 include replacement ear cushions for enhanced comfort and hygiene. Additional audio cables, such as extension cords, can extend connectivity options. A stereo adapter may also be available for use with older devices, ensuring compatibility and improved sound quality across various audio sources.
7.3 Replacement Parts
Replacement parts for the Sennheiser HDR 120 include ear cushions and NiMH batteries, ensuring longevity. The transmitter TR 110 can also be replaced if needed. Genuine Sennheiser parts are recommended for optimal performance and durability, maintaining the headset’s audio quality and comfort over time.
Safety Precautions
Handle the Sennheiser HDR 120 with care to avoid damage. Avoid exposing the headphones to extreme temperatures or moisture. Use only approved chargers and follow proper charging procedures. Ensure volume levels are reasonable to protect hearing health.
8.1 Handling the Headphones
Avoid exposing the Sennheiser HDR 120 to extreme temperatures or moisture. Never modify the headphones without authorization, as this may void the warranty. Use only approved chargers and adapters to prevent damage. Clean the headphones gently with a soft cloth and avoid harsh chemicals. Store them in a dry, cool place when not in use.
8.2 Avoiding Damage
Use only the original charger and avoid exposing the headphones to extreme temperatures or moisture. Prevent physical stress by handling them gently. Avoid dropping or bending the headband. Keep the headphones clean and store them in a cool, dry place. Never modify the device without authorization, as this may cause permanent damage or void the warranty.
8.3 Health and Safety Guidelines
Use the headphones at moderate volume to protect hearing. Avoid prolonged use at high levels, as this may cause hearing damage. Ensure a proper fit to prevent discomfort or pressure. Keep the device out of reach of children and avoid using it in hazardous environments. Regular breaks are recommended to maintain ear health and comfort.
Manufacturer Information
Sennheiser, a leading audio brand, offers reliable customer support. Contact them at +49 (5130) 600 0 or fax +49 (5130) 600 300 for assistance. Their headquarters ensures quality and innovation in audio products, providing excellent service for HDR 120 users.
9.1 About Sennheiser
Sennheiser is a renowned global brand specializing in high-quality audio products. Founded in Germany, the company has built a reputation for innovation, quality, and reliability. Known for its advanced headphones, microphones, and audio solutions, Sennheiser caters to both professionals and consumers. Their commitment to exceptional sound quality and durability has made them a trusted name in the audio industry worldwide.
9.2 Customer Support
Sennheiser provides comprehensive customer support, including troubleshooting and inquiries. Contact their team via phone at 49 (5130) 600 0 or fax at 49 (5130) 600 300. Additionally, their official website offers resources, manuals, and FAQs. For assistance, visit their support page or reach out to authorized service centers for professional help and guidance.
9.3 Warranty Information
The Sennheiser HDR 120 is backed by a comprehensive warranty covering manufacturing defects. The standard warranty period is typically two years, with options for extended coverage under specific conditions. For warranty service, contact Sennheiser’s customer support or visit their official website. Ensure to register your product for smoother claims and extended benefits.
The Sennheiser HDR 120 offers a blend of quality sound, comfort, and reliability. With its robust design and user-friendly features, it’s an excellent choice for immersive audio experiences. Follow the manual for optimal performance and enjoy enhanced listening with these premium headphones.
10.1 Final Thoughts
The Sennheiser HDR 120 offers a well-rounded audio experience with its clear sound quality and comfortable design. Its wireless functionality and reliable battery life make it ideal for daily use. While minor connectivity issues may arise, overall, it delivers great value for those seeking a balance between performance and convenience, backed by a detailed manual for easy troubleshooting.
10.2 Sennheiser HDR 120 Manual Summary
The Sennheiser HDR 120 manual provides a comprehensive guide for optimal use, covering installation, troubleshooting, and maintenance. It includes detailed steps for setup, connectivity, and care, ensuring users can resolve issues and maintain performance. The manual also outlines safety precautions and warranty details, making it an essential resource for a seamless and enjoyable audio experience.