Product Overview
The Sennheiser HDR 120 is a wireless headphone system designed for immersive audio experiences. It features a sleek design, comfortable fit, and reliable wireless connectivity.
1.2 Key Features and Specifications
With a sensitivity of 106 dB and a signal-to-noise ratio of 65 dB, these headphones deliver clear sound. They include a rechargeable NiMH battery and TUNE control for customized listening.
The Sennheiser HDR 120 is a wireless headphone system designed for immersive audio experiences. It includes a transmitter unit and binaural headphones, offering a comfortable fit and reliable wireless connectivity. Part of the RS 120 Hi-Fi system, it operates in the 863MHz or 926MHz frequency range, ensuring clear sound transmission. Ideal for home audio, these headphones provide extended low-frequency reproduction and are compatible with TVs and stereo systems, making them perfect for entertainment and private listening sessions. Lightweight and ergonomic, they ensure comfort during extended use.
The Sennheiser HDR 120 features a sensitivity of 106 dB and a signal-to-noise ratio of 65 dB, ensuring clear and distortion-free sound. Weighing 230g, it includes a TUNE control for customized listening. The supra-aural, open-back design provides extended low-frequency reproduction and comfort. Equipped with rechargeable NiMH batteries, it offers reliable wireless connectivity. A channel switch on the transmitter reduces interference, optimizing sound quality and reception for an immersive audio experience.
Installation and Setup
Connect the transmitter to your audio device using the headphone jack or audio out port. Turn on both the transmitter and headphones to establish a connection.
2.1 Connecting the Transmitter to Your Audio Device
To connect the transmitter, locate the audio output port on your device (e.g., headphone jack or audio out). Plug the transmitter into this port securely. Ensure the transmitter is powered on and properly paired with the headphones for a stable wireless connection. Follow the device’s instructions for optimal setup and signal strength.
2.2 Pairing the Headphones with the Transmitter
To pair the headphones with the transmitter, turn both devices on. Press and hold the pairing button on the transmitter until the LED flashes. On the headphones, press and hold the power button while sliding it to the “on” position. Release when the LED on the headphones flashes. Pairing is complete when both LEDs turn solid, indicating a successful connection. Ensure both devices are fully charged for optimal pairing.
Operating Instructions
Use the power button to turn the headphones on/off. Adjust volume via the controls on the ear cup. Utilize the TUNE control for sound customization and ensure a clear signal for optimal performance.
3.1 Controls and Adjustments on the Headphones
The HDR 120 headphones feature intuitive controls, including a power button and volume adjustment on the ear cup. Use the TUNE control to customize sound settings for a personalized listening experience. The open-back design enhances sound quality, while the adjustable headband ensures a comfortable fit. For optimal performance, adjust settings to minimize interference and ensure clear audio reception. Explore these controls to tailor your listening experience to your preferences.
3.2 Changing Transmission Channels for Optimal Reception
To minimize interference, switch transmission channels by adjusting the transmitter’s channel switch. This ensures a stable connection and clear audio. If signal loss occurs, reposition the transmitter or move away from devices causing interference. Experiment with different channels to find the one with the strongest signal. This simple adjustment enhances your listening experience by reducing static and dropout issues, ensuring uninterrupted enjoyment of your audio content.
Battery and Charging
The Sennheiser HDR 120 uses rechargeable NiMH batteries for long-lasting performance. Charge them fully before first use and store in a cool, dry place to prevent damage.
4.1 Charging the Rechargeable NiMH Batteries
Connect the transmitter to a power source using the provided cable. Place the headphones on the transmitter to begin charging. The LED indicator will turn red during charging and green when fully charged. Ensure batteries are charged for at least 16 hours initially. Avoid overcharging to prolong battery life. Store batteries in a cool, dry place when not in use for extended periods.
4;2 Battery Care and Maintenance Tips
Avoid extreme temperatures and moisture to preserve battery life. Clean terminals with a soft cloth to ensure proper charging. Prevent overcharging by removing batteries when fully charged. Store batteries in a cool, dry place if not used for extended periods. Charge every few months to maintain capacity. Replace batteries if they no longer hold a charge. Always use the provided charger to avoid damage.
Troubleshooting Common Issues
Check connections for secure fit. Restart transmitter and headphones. Ensure batteries are charged. Move devices away to reduce interference. Refer to manual for detailed solutions.
5.1 Resolving Signal Loss or Interference
To resolve signal loss or interference, ensure the transmitter is placed away from obstacles. Change the transmission channel by adjusting the switch on the transmitter. Keep devices emitting RF signals at a distance. Check that the headphones are properly paired with the transmitter. Ensure all connections are secure and restart both devices if issues persist. This will help restore a stable wireless connection for optimal audio performance.
5.2 Addressing Audio Distortion or Poor Sound Quality
To address audio distortion or poor sound quality, ensure the headphones are fully charged and properly paired with the transmitter. Check the audio cables for damage or loose connections. Adjust the TUNE control to optimize sound settings. Move the transmitter away from devices emitting RF interference. If issues persist, restart both the headphones and transmitter. This should restore clear and distortion-free audio for an enhanced listening experience.
Maintenance and Care
Regularly clean the headphones with a soft cloth and avoid storing them with ear cups spread wide, as this can cause damage. Proper storage ensures longevity.
6.1 Cleaning the Headphones and Transmitter
Clean the Sennheiser HDR 120 headphones and transmitter with a soft, dry cloth to remove dust and dirt. For stubborn stains, dampen the cloth with water, but avoid harsh chemicals or excessive moisture. Regular cleaning prevents damage and ensures optimal performance. Store the headphones properly to maintain their condition and longevity. Avoid leaving the ear cups spread wide for extended periods, as this can cause wear. Proper care extends the lifespan of your headphones.
6.2 Storing the Headphones Properly
Store the Sennheiser HDR 120 headphones in a cool, dry place, avoiding humidity and extreme temperatures. Keep them away from direct sunlight and moisture. When not in use, place the headphones in their original carrying case or a protective pouch to prevent dust and physical damage. Avoid leaving the ear cups spread wide for extended periods, as this can cause wear. Proper storage ensures longevity and maintains their performance quality.
Advanced Features
The HDR 120 features a TUNE control for customized listening experiences and an open-back design that enhances sound quality, providing immersive audio for movies and music.
7.1 Using the TUNE Control for Customized Listening
The TUNE control on the Sennheiser HDR 120 allows users to adjust the audio balance between the left and right channels, ensuring an optimal listening experience tailored to individual preferences. This feature is particularly useful for addressing any discrepancies in audio output, providing a more balanced sound. By fine-tuning the TUNE control, listeners can enhance their immersion in music or dialogue, making it a versatile tool for personalized audio customization.
7.2 Exploring Open-Back Design and Sound Quality
The Sennheiser HDR 120 features an open-back design, which enhances sound quality by allowing air to circulate through the ear cups. This design minimizes resonance and produces a more natural soundstage, offering detailed audio reproduction with extended low-frequency response. The open-back design also contributes to a comfortable listening experience, reducing listener fatigue during extended sessions. This feature makes the HDR 120 ideal for immersive music and movie experiences, delivering clear and balanced audio.
Safety Precautions
Ensure RF exposure reduction by keeping the device away from your body and using lower output settings. Follow manual guidelines for safe operation and battery handling.
8.1 Important Safety Information from the Manual
Always follow the manual’s guidelines to ensure safe usage. Avoid exposing the headphones to extreme temperatures or moisture. Store them properly when not in use to prevent damage. Keep the headphones away from children and avoid using them near open flames or sparks. Ensure batteries are handled correctly to prevent leakage or explosion. For optimal performance and safety, adhere to all instructions provided in the manual;
Safety Tip: Regularly inspect the headphones and transmitter for damage or wear.
8.2 RF Exposure Reduction Tips
To minimize RF exposure, keep the headphones and transmitter at a reasonable distance from your body. Use the lowest necessary volume and avoid prolonged use. Ensure the device is switched off when not in use. Regularly check for software updates to maintain optimal performance and safety. By following these guidelines, you can reduce RF exposure while enjoying your Sennheiser HDR 120 headphones.
Tip: Use the device as needed and take breaks to minimize continuous exposure.
The Sennheiser HDR 120 offers excellent sound quality, comfort, and wireless convenience. Regular maintenance ensures longevity, and proper usage enhances your listening experience.
Tip: Always store headphones correctly and charge batteries fully for optimal performance.
9;1 Summary of Key Benefits and Features
The Sennheiser HDR 120 offers wireless freedom, clear sound quality, and comfortable wear. Key features include rechargeable NiMH batteries, TUNE control for customized listening, and an open-back design. It operates on 863MHz/926MHz frequencies, ensuring reliable transmission. Lightweight and ergonomic, these headphones provide extended low-frequency reproduction for immersive audio. With proper care, they deliver long-lasting performance, making them a great choice for home entertainment and music enthusiasts seeking quality wireless headphones.
9.2 Final Tips for Optimal Usage
For the best experience with your Sennheiser HDR 120, ensure proper battery charging and storage. Regularly clean the headphones to maintain sound quality. Use the TUNE control to tailor your listening experience. Store the headphones in a cool, dry place to prevent damage. Always check for firmware updates and refer to the manual for troubleshooting. By following these tips, you’ll enjoy reliable performance and immersive sound for years to come.