HIFIMAN's new dynamic closed-back, the HE-R9, takes a classic model and delivers superlative performance. It utilizes HIFIMAN's best sounding “Topology Diaphragm” dynamic drivers, which support traditional wired connectivity, such as our outstanding HeadAmp Gilmore Lite mk2 or wireless connectivity, such as HIFIMAN’s Bluemini R2R Dongle. Elegance Outside, Strength Inside The exterior of the headband is covered by high-quality leather, giving it a soft and elegant appearance, with high grade memory foam to achieve the most comfortable fit and elasticity. Its structure is made of solid steel and is both lightweight and strong, yet robust and delicate. Large crimson red ear cups, which have plenty of internal space, help produce spatial cues and provide necessary breathing room for the power driver to sound its best. The drivers contain a rare earth metal magnet for high sensitivities and a special nanoparticle coating which is applied to their surface. This results in a more natural and detailed sound with a high frequency response up to 35kHz. The idea behind this new technology was inspired by Dr. Fang Bian's Ph.D. thesis, stating that "different nano-materials have differing structures and each of those materials have their own properties." Therefore, by carefully controlling the diaphragm surface structure, you can yield different results in acoustic performance to a degree previously unobtainable. What's Included • HIFIMAN HE-R9 headphone • Dual entry single-ended 3.5mm headphone cable with 1/8" Jack and 6.35mm adapter • HIFIMAN HE-R9 Manual Optional Bluemini R2R Specs • DAC: HIFIMAN HIMALAYA • Frequency Response: 20hz - 20kHz • Signal-to-noise ratio: 114dB • Battery life: 8 hours • Net weight: 25g The Specs Style Closed-Back Cable Single Entry Balanced 3.5mm TRRS or Single Ended Dual 3.5mm TRS Transducer Type "Topology Diaphragm" Dynamic Driver Frequency Response 15 Hz to 35 KHz Sensitivity 100 dB/mW Impedance 32 ohms Weight 328 grams
