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Details frequency response, impedance, sensitivity, weight, and input type for the HE-R9 headphones.
Lists the items included in the HE-R9 headphone package, such as the headphone, cable, adapter, and manual.
The HIFIMAN HE-R9 is a high-performance closed-back headphone designed to deliver an exceptional audio experience, combining elegant aesthetics with robust internal engineering. This owner's guide provides a comprehensive overview of the HE-R9's features, usage, and maintenance, ensuring users can fully appreciate its capabilities.
The HE-R9 headphones are engineered to reproduce sound with remarkable detail, musicality, and a wide soundstage, characteristic of both closed-back and open-back designs. At the core of its acoustic performance is the HIFIMAN Topology Diaphragm Technology. This innovative approach, inspired by Dr. Fang Bian's PhD research, involves applying nano-scale particles to the diaphragm in various shapes and patterns. This precise application allows for a high level of optimization, significantly enhancing the diaphragm's audio characteristics. While this technology was initially developed for In-Ear Monitors, the HE-R9 marks its application in a comparatively large-scale dynamic driver, bringing its benefits to a full-size headphone. The result is a transparent, coherent, and immersive listening experience.
The HE-R9's large ear cups, finished in a striking crimson red, are not merely a design statement but a crucial element of its superior acoustics. The substantial internal volume of these cups provides ample spatial room and the necessary "breathing room" for the powerful dynamic driver to perform optimally. This design choice contributes to the headphone's exceptional tuning, allowing it to achieve a sound quality that harmoniously blends the best attributes of both closed-back and open-back headphones, offering a rich and detailed sound without the typical limitations of closed designs.
The HE-R9 is designed for comfort and versatility, ensuring a pleasant listening experience over extended periods. The headband is crafted for both durability and user comfort. Its exterior is covered in high-standard leather, providing a soft and elegant feel, while the interior features high-grade memory foam. This memory foam is specifically chosen for its ability to achieve the most comfortable fit and elasticity, adapting to the user's head shape. The underlying skeleton of the headband is made of solid steel, ensuring a lightweight yet robust structure that can withstand regular use.
Headband adjustment is straightforward, allowing users to achieve the best possible fit. The headband strap features two adjustment blocks that can be easily manipulated to position the headphones correctly on the head. This ensures a secure yet comfortable fit for various head sizes.
The HE-R9's "Tranquility" ear pads are another key feature contributing to both sound quality and comfort. These ear pads are constructed with high-quality leather on the outside. A unique ring-shaped inner surface is designed to absorb sound and prevent sound leakage through the sides of the ear pad. This clever engineering directs the sound more effectively towards the listener's ear, enhancing clarity and immersion. The contact edge of the ear pads is made from a highly permeable material, ensuring optimal head comfort even during long listening sessions.
The ear pads are also designed for easy replacement. To remove them, users can locate the clips on the inside of the pad, gently bend them with two fingers, and slip them out. Installing new pads involves aligning the ear pad with the mounting ring and gently bending the clips to slot them into their appropriate locations. This user-friendly design allows for easy maintenance and potential customization.
Connectivity for the HE-R9 is versatile, accommodating different audio setups. The headphone's socket is designed to work with both dual-sided unbalanced 3.5mm cables and single-sided 3.5mm balanced cables simultaneously. The package includes a 3.5mm dual-sided cable (1.5m) and a 6.35mm adapter, making the HE-R9 compatible with most headphones and headphone amplifiers. For users seeking wireless connectivity or a single-sided balanced option, accessories like the Bluemini and a single-sided 3.5mm balanced cable are available separately, expanding the HE-R9's adaptability to various listening preferences and equipment.
To ensure the HE-R9 headphones deliver optimum performance and longevity, a few maintenance practices are recommended.
Firstly, the headphones benefit from a break-in period. Typically, it takes up to 150 hours of use for the HE-R9 to achieve its optimal sound performance. During this period, no special actions are required other than simply enjoying the headphones.
For general cleaning, the surfaces of the headphones, including the ear pads and cups, should be wiped with a microfiber cloth. This helps to remove dust and fingerprints without causing damage.
Proper storage is essential for preserving the condition of the HE-R9. The headphones should be stored in a dry, cool, and safe place. It is important to keep them away from dust, excessive heat, high humidity, direct sunlight, and out of reach of young children and pets, as these factors can cause damage or premature wear.
To prolong the life of the headband, it is advisable to periodically wipe it with a clean, dry cloth. This helps maintain the quality of the leather and memory foam.
Users should avoid exposing the headphones to extreme temperatures, whether hot or cold, as this can negatively impact the materials and internal components.
When using the headphones, it is crucial to prioritize safety. Do not use the HE-R9 while driving or operating machinery, as this can be a distraction and pose a safety risk.
For cleaning the headphones, it is important to avoid using volatile substances. This includes alcohol, acetone, gasoline, or dish detergent, as these chemicals can damage the materials and finishes of the HE-R9. Adhering to these simple maintenance guidelines will help ensure the HIFIMAN HE-R9 continues to provide countless hours of high-quality audio enjoyment.
General| Type | Over-ear |
|---|---|
| Driver | Dynamic |
| Frequency Response | 15 Hz - 35 kHz |
| Weight | 328 g |
| Cable Length | 1.5 m |
| Connector | 3.5 mm |
| Ear Coupling | Circumaural |
| Magnet Type | Neodymium |
| Impedance | 32 Ohms |
| Sensitivity | 100 dB |
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