Hifiman HE-R9 Dynamic Closed Back Headphones Owner’s Guide
Message from the Founder
Thank you for your purchase of a HIFIMAN product. We take great pride in offering audio products that provide best-in-class performance and value. Though it seems like only yesterday when, as a passionate audiophile, I started HIFIMAN, we just finished our first decade in business and eagerly look forward to an exciting future. The company continues to grow at a rapid pace, and the HIFIMAN brand is one of the most respected in the industry. Even with our success, two things that never change are my love of music and my commitment to creating products that recreate the experience of hearing a live performance. I am joined by many others in the company who share my passion and in turn, we humbly share our passion with you. Thank you again for your purchase. I hope you will find this guide a useful tool for learning about your product, ultimately helping you enjoy countless hours of pleasure.
HIFIMAN Topology Diaphragm Technology
Topology Diaphragm is the name used to describe the technology first developed for our In-Ear Monitors. The name comes the way the technology works: it is made by applying an scale particles to the diaphragm in layers of assorted shapes and patterns, thereby allowing for a high level of optimization that has a noticeably positive effect on the diaphragm’s audio characteristics.
The inspiration for the topological diaphragm originated from Dr. Fang’s PhD research, which illustrated that “different nanomaterials have different structures.” Subsequently, the characteristics are not the same. The result was a range of dynamic IEM drivers, but the HE-R9 i sa new product with the technology on a comparatively large-scale driver.
Elegance Outside, Strength Inside
The exterior of the headband is covered by high-standard leather, giving it a soft and elegant appearance. The inside is high-grade memory foam, selected to achieve the most comfortable fit and elasticity. The headband skeleton itself is made of solid steel. The structure is both lightweight and strong, robust yet delicate, and designed to convey detail and musicality that is unmatched in the market.
Large Ear Cups for Superior Acoustics
The large internal space of the HE-R9’s cup affords substantial spatial volume and the necessary breathing room for the powerful driver to sound its best. The crimson red ear cups offers exceptional tuning, with outstanding sound quality that combines the best attributes of closed- and open-back headphones.
Tranquility Pads
The HE-R9’s “Tranquility” ear pads feature high quality leather on the outside, which uses a ring-shaped inner surface to absorb sound and
prevent sound leakage through the sides of the ear pad. This forces the sound to target the listener’s ear. The contact edge is constructed of highly permeable material to ensure optimal head comfort. The outcome of this advanced engineering? A transparent, coherent, and wide soundstage, with maximum comfort.
Cable Connections
The socket accommodates both dual-sided 3.5mm TRS and a single-sided 3.5mm TRRS connections.* (Left socket.) The Bluemini* dongle easily connects to the left socket for Bluetooth connectivity.
- The single-sided 3.5mm TRRS cable is not included with the HE-R9.
- Bluemini dongle is available with the wireless version of the HE-R9 or can be purchased separately.
Always confirm compatibility before attempting to use aftermarket cables. For details, please refer to the following illustration of the stock cable included with the HE-R9.
Package Details
Specifications
Frequency response range: 15-35KHz
Impedance: 32Ω
Sensitivity: 100dB
Weight: 328g
Input: 3.5mm
3.5mm TRRS (left only)
Package Contents
HE-R9 headphone
Dual-side 3.5mm plug headphone cable (1.5m) x 1
6.35mm Adapter x 1
Ear pads (installed on the headset) x 1 pair
Headband Adjustment
For the best possible fit, use the two adjustment blocks to adjust the position of the headband strap.
Replacing Ear Pads
To remove the ear pads, locate the clips on the inside of the pad, and use two fingers to gently bend them in and slip them out. To install new pads, simply align the ear pad with the mounting ring and gently bend the clips so they slot in their appropriate locations.
Care and Maintenance
The headphones benefit from break-in to achieve optimum performance. Usually, this takes up to 150 hours. Until then, here is nothing special you need to do other than enjoy your headphones. Wipe the surfaces (ear pads, cups) with a microfiber cloth and store the headphone in a dry, cool, and safe place (away from dust, heat, humidity, sunlight, younger kids, and pets if possible). To prolong the life of the headband, periodically wipe it with a clean, dry cloth. Avoid exposure to extreme heat or cold. Do not use any headphone while driving or operating machinery. Do not use volatile substances, including alcohol, acetone, gasoline or dish detergent, to clean the headphone.
HIFIMAN Limited Warranty
Your product is warrantied for a period of one year beginning with the original date of purchase. If you join HIFIMAN on Facebook, your product warranty will be extended for an additional six months. Please contact HIFIMAN customer service if you need any assistance. The dated sales or delivery receipt is your proof of purchase. You may be required to provide proof of purchase as a condition of receiving warranty service so please keep it handy. If your product is under warranty and malfunctions occur, please contact HIFIMAN customer service or your authorized dealer. If necessary, and at the discretion of HIFIMAN, the company will provide a warranty repair or replacement of your product.
Caution: do not disassemble or modify the product in any way. Tampering with or modifying your HIFIMAN product will void its warranty.
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