The Sennheiser HDR 175 is a wireless supra-aural headphone designed for immersive audio experiences. Weighing 310 grams, it offers comfort and extended listening sessions. With a frequency response of 17–22,000 Hz and sensitivity of 114 dB, it delivers high-quality sound. The closed acoustic system minimizes external noise, enhancing audio clarity. Operated by AA batteries, it provides up to 18 hours of continuous playback. Paired with the TR 175 transmitter, it ensures stable wireless connectivity up to 100 meters. Ideal for home entertainment, the HDR 175 combines advanced features with ergonomic design for exceptional listening comfort.
1.1 Overview of the Sennheiser HDR 175 Headphones
The Sennheiser HDR 175 is a wireless supra-aural headphone designed for immersive audio experiences. Weighing 310 grams, it offers comfort and extended listening sessions. With a frequency response of 17–22,000 Hz and sensitivity of 114 dB, it delivers high-quality sound. The closed-back design reduces external noise, enhancing audio clarity and immersion.
1.2 Key Features and Benefits
The Sennheiser HDR 175 offers digital wireless technology with a 2.4 GHz frequency, ensuring interference-free audio up to 100 meters. It features 18-hour battery life, ergonomic design for comfort, and closed-back ear cups for immersive sound quality. Its lightweight build and intuitive controls enhance user experience, making it ideal for extended listening sessions.
System Components and Accessories
The Sennheiser HDR 175 system includes the HDR 175 headphones, TR 175 transmitter, optical and audio cables, power supply with adapters, and rechargeable AAA NiMH batteries for seamless wireless audio.
2.1 What’s Included in the Package
The HDR 175 package includes the wireless headphones, TR 175 transmitter, optical cable, audio cable, power supply with EU, UK, US, and AU adapters, two rechargeable AAA NiMH batteries, and a quick guide. These components ensure easy setup and optimal performance right out of the box.
2.2 Understanding the TR 175 Transmitter
The TR 175 transmitter operates on a 2.4–2.48 GHz digital wireless frequency, ensuring a stable, interference-free connection up to 100 meters. It connects seamlessly to audio sources and pairs with HDR 175 headphones for high-quality sound transmission. Its compact design and lightweight construction make it easy to integrate into any home audio setup.
2.3 Accessories and Replacement Parts
The HDR 175 package includes optical and audio cables, a power supply, and rechargeable batteries. Additional accessories like replacement ear pads and the TR 175 transmitter are available. Sennheiser offers a range of replacement parts, ensuring longevity and optimal performance. These can be easily purchased from authorized retailers or Sennheiser’s official website.
Installation and Setup Guide
The Sennheiser HDR 175 setup involves connecting the TR 175 transmitter to your audio source, pairing the headphones, and charging the batteries for optimal performance.
3.1 Connecting the Transmitter to Audio Sources
Connect the TR 175 transmitter to your audio source using the provided optical or RCA cable. Ensure the transmitter is powered on and properly linked to the HDR 175 headphones for a stable wireless connection. Refer to the manual for detailed steps to establish a seamless audio link.
3.2 Pairing the HDR 175 Headphones with the Transmitter
To pair the HDR 175 headphones with the TR 175 transmitter, ensure both devices are powered on. The pairing process is automatic, establishing a secure wireless connection via 2.4 GHz digital transmission. Check the LED indicators on both devices to confirm successful pairing. This ensures optimal audio synchronization and reliability.
3.3 Charging the Batteries
The HDR 175 uses two AA NiMH rechargeable batteries. Charge them using the provided power supply or a compatible charger. The red LED indicates charging, turning green when fully charged. Charging time is approximately 16 hours. Ensure only approved chargers are used to maintain battery health and performance.
Features and Functionalities
The HDR 175 offers digital wireless technology with a 100-meter range, two virtual surround sound modes, and a bass boost feature for enhanced audio customization and immersion.
4.1 Digital Wireless Technology
The Sennheiser HDR 175 utilizes a 2.4-2.48 GHz digital wireless transmission, ensuring a stable and interference-free connection with a range of up to 100 meters. This technology provides reliable audio streaming, minimizing dropouts and ensuring consistent sound quality. It operates on AA batteries, offering up to 18 hours of continuous playback with low total harmonic distortion (THD) of 0.5%, delivering clear and immersive audio.
4.2 Surround Sound Modes
The HDR 175 features two virtual surround sound modes, HI and LO, designed to simulate external stereo speakers. These modes create a more immersive and spacious listening experience by enhancing the audio’s depth and dimensionality, making it ideal for movies and music.
4.3 Ergonomic Design and Comfort
The HDR 175 boasts a lightweight design weighing 310 grams, ensuring extended comfort. Its cushioned ear pads and adjustable headband provide a secure fit, reducing pressure for long listening sessions. The closed-back ear cups effectively isolate ambient noise, enhancing audio immersion without compromising wearer comfort.
Audio Performance and Specifications
The Sennheiser HDR 175 offers a frequency response of 17–22,000 Hz, sensitivity of 114 dB, and total harmonic distortion of 0.5%, with up to 18 hours of battery life.
5.1 Frequency Response and Sensitivity
The Sennheiser HDR 175 features a frequency response of 17–22,000 Hz, ensuring detailed audio reproduction across the spectrum. With a sensitivity of 114 dB, it delivers clear and powerful sound. The closed acoustic design enhances bass response and minimizes external noise, providing an immersive listening experience tailored for music and home entertainment.
5.2 Total Harmonic Distortion (THD)
The Sennheiser HDR 175 boasts a low Total Harmonic Distortion (THD) of 0.5%, ensuring clean and accurate audio reproduction. This minimal distortion level allows for faithful sound representation, enhancing the clarity and fidelity of music and dialogue, making it ideal for discerning listeners seeking high-quality audio performance.
5.3 Battery Life and Usage
The Sennheiser HDR 175 offers up to 18 hours of continuous playback on a single charge. It uses two AA NiMH rechargeable batteries, which provide reliable power. The headphones support operation while charging, ensuring uninterrupted listening. Charging time is approximately 16 hours, allowing extended use after a full charge.
Operation and Control
The HDR 175 features intuitive controls for volume adjustment, power management, and sound mode selection. LED indicators provide status updates, ensuring seamless operation and user convenience.
6.1 Power Management
The HDR 175 incorporates efficient power management with an automatic shut-off feature, reducing battery drain when inactive. The system includes low-battery alerts and extended 18-hour playback on AA batteries, ensuring uninterrupted listening sessions and reliable performance for home entertainment.
6.2 Volume and Sound Mode Adjustments
The HDR 175 allows precise volume control via intuitive buttons on the earcup. Users can toggle between surround sound modes (HI/LO) for immersive audio and activate bass boost for enhanced low-frequency response, tailoring the listening experience to personal preferences without complexity.
6.3 Indicator Lights and Status Messages
The HDR 175 features LED indicators for status updates. The transmitter’s LED shows connection status, while the headphones’ LED indicates power, charging, and pairing modes. Flashing lights signal low battery or pairing issues, ensuring users stay informed about device status at all times for seamless operation.
Troubleshooting Common Issues
This section guides users through resolving common problems like no sound, interference, or charging issues. Practical solutions help restore functionality quickly and efficiently.
7.1 No Sound or Interference
If experiencing no sound or interference, ensure the headphones are properly paired with the transmitter. Check battery levels and connections. Restart the system, and verify audio source output. Adjust the transmitter’s placement to avoid signal obstruction.Consult the manual for additional troubleshooting steps to resolve the issue effectively.
7.2 Charging Problems
If charging issues arise, ensure the batteries are correctly inserted and the charger is functioning. Check for dirt or corrosion on contacts. Use only Sennheiser-approved batteries and chargers. If problems persist, refer to the manual or contact support for further assistance to resolve the charging issue promptly.
7.3 Connection Stability
To ensure stable connections, place the TR 175 transmitter away from obstacles and interference sources. Restart both the headphones and transmitter if issues occur. Check for firmware updates and ensure proper pairing. If problems persist, consult the manual for troubleshooting steps or contact Sennheiser support for assistance.
Maintenance and Care
Clean the HDR 175 with a soft, dry cloth. Avoid exposure to heat sources. Use only approved accessories and store the headphones properly when not in use.
8.1 Cleaning the Headphones
To clean the Sennheiser HDR 175, use a soft, dry cloth to wipe the ear cushions and headband. Avoid harsh chemicals or moisture, which may damage the materials. Regular cleaning ensures hygiene and maintains the headphones’ appearance. For stubborn stains, dampen the cloth slightly, but ensure no moisture enters the internal components.
8.2 Storing the Device
Store the Sennheiser HDR 175 in its original packaging or a protective case to prevent damage. Keep it in a cool, dry place away from direct sunlight and extreme temperatures. Avoid stacking heavy objects on the headphones. Proper storage ensures longevity and maintains the device’s performance and appearance.
8.3 Updating Firmware
Regular firmware updates ensure optimal performance and feature enhancements for the Sennheiser HDR 175. Visit the official Sennheiser website to download the latest firmware version. Follow the provided instructions to install updates using the TR 175 transmitter. Always use a stable internet connection and avoid interrupting the update process.
Compatibility and Integration
The Sennheiser HDR 175 integrates seamlessly with various audio sources and supports multi-device connections. It is compatible with the RS 175 system, allowing multiple headphones to connect to one transmitter.
9.1 Supported Audio Sources
The Sennheiser HDR 175 is compatible with various audio sources, including home theaters, TVs, and stereos. It supports optical and RCA connections, ensuring versatile integration with modern entertainment systems. This versatility makes it ideal for enhancing audio experiences across different devices.
9.2 Multi-Device Connection
The HDR 175 supports multi-device connection, enabling seamless integration with multiple audio sources such as TVs, stereos, and home theaters. It can be paired with the TR 175 transmitter, allowing simultaneous connection to various devices via optical and RCA inputs, ensuring versatile and efficient audio playback across different systems.
9.4 Using Multiple Headphones
The Sennheiser HDR 175 system supports the use of multiple headphones simultaneously. An optional second headphone, such as the HDR 175, can be paired with the TR 175 transmitter, enabling shared listening experiences. This feature enhances convenience for multiple users, providing synchronized audio playback and seamless connectivity.
Advanced Listening Modes
The Sennheiser HDR 175 offers advanced listening modes, including virtual surround sound, bass boost mode, and customizable audio settings, enhancing your listening experience with tailored sound preferences.
10.1 Virtual Surround Sound
The Sennheiser HDR 175 features virtual surround sound technology, simulating an immersive audio environment. It recreates external stereo speakers’ effect, offering a spacious and lifelike soundstage. This mode enhances your listening experience by providing depth and dimensionality to the audio, making it ideal for movies and gaming sessions.
10.2 Bass Boost Mode
The Bass Boost Mode on the Sennheiser HDR 175 enhances low-frequency sounds, delivering deep, powerful bass for an immersive experience. Ideal for music and movies, it adds dynamic energy to your audio. Activation is simple, allowing users to customize their listening experience with intensified bass for a more engaging sound.
10.3 Customizing Audio Settings
The Sennheiser HDR 175 allows users to tailor their audio experience through customizable settings. Adjust equalization, surround sound modes, and bass levels to suit personal preferences. These settings can be fine-tuned using the transmitter or companion app, ensuring a personalized listening experience for optimal enjoyment of music, movies, and more.
Safety and Warranty Information
Ensure safe usage by avoiding heat sources and using only approved accessories. The HDR 175 is backed by a warranty covering manufacturing defects. Compliance with international standards ensures reliability and performance, providing users with a secure and durable product experience.
11.1 Safety Precautions
To ensure safe usage, avoid exposing the HDR 175 to heat sources. Clean only with a dry, soft cloth. Use approved accessories and avoid modifications. Follow charging guidelines to prevent battery damage. Proper handling will extend product lifespan and maintain performance.
11.2 Warranty Details
The Sennheiser HDR 175 comes with a comprehensive warranty covering manufacturing defects. Register your product for extended support. Warranty periods and terms vary by region; refer to the manual for specifics. Proper usage ensures coverage, while damages from misuse or modifications may void the warranty. Contact Sennheiser support for details.
11.3 Compliance and Certifications
The Sennheiser HDR 175 complies with international standards for safety and wireless communication. It operates within the 2.4-2.48 GHz range, adhering to FCC and CE regulations. Certified for electromagnetic compatibility, it ensures safe and reliable performance. The device meets global standards, making it suitable for use in multiple regions.
The Sennheiser HDR 175 offers exceptional audio quality and comfort. For further support, visit the official Sennheiser website or download the manual for detailed instructions.
12.1 Final Tips for Optimal Use
For the best experience with your Sennheiser HDR 175, clean the headphones regularly, store them properly when not in use, and charge batteries when needed. Update firmware periodically for optimal performance. Adjust the headband for comfort and use the correct audio sources for clear sound. Explore surround sound modes and bass boost for enhanced audio. Always refer to the manual for troubleshooting common issues and maintenance tips.
12.2 Accessing Official Support
Visit the official Sennheiser website for comprehensive support resources. Download the PDF manual, explore FAQs, and contact customer service for assistance. The website also offers firmware updates, troubleshooting guides, and detailed product information to ensure optimal use of your HDR 175 headphones.