Nagaoka R1

High-end reference headphones with ruby acoustic filter. The R1 is the world's first balanced headset to use Ruby as an acoustic filter. It is just as impressive in terms of performance as in terms of aesthetics and design. The extremely hard Ruby material, used as an acoustic filter, significantly suppresses stray resonances inside the unit and provides incredible depth and clarity throughout the frequency spectrum. It provides a sound stage and dynamic range that you haven't heard before with earbuds.
The R1 uses a machined low resonance aluminum housing
4N OFC Silver-plated cable with 3.5mm gold-plated angled connector
Includes Comply ™ foam earbuds for airtightness and sound insulation
Replacement set of earbuds
Comes with a storage case made of domestic cowhide
Made in Japan
Frequency Range: 4 Hz - 90 kHz
Type: Hi-Fi
Type: In-Ear
Construction Method: Closed-back
Microphone: No
Active noise cancellation: No
Colour: Black
Sensitivity (dB): 113.0
Type-A Connector: 3,5 mm Jack
Cable Length: 120 cm
Impedance (Ohm): 31.0
Speaker Type: Dynamic
Weight (g): 8.0
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