Nagaoka R1 High-End Reference In-Ear Headphones Black

World first! High-end reference in-ear headphones with a ruby acoustic filter.

The R1 is the world's first balanced-armature earphone to use ruby as an acoustic filter. It is equally impressive in terms of performance, aesthetics and design. The extremely hard ruby material used as the acoustic filter strongly suppresses stray resonances inside the unit and delivers incredible depth and clarity across the entire frequency spectrum, with a soundstage and dynamic range never heard before from in-ear headphones.

• Machined low-resonance aluminium housing
• 4N OFC silver-plated cable with gold-plated 3.5 mm angled connector
• Comply foam ear tips for airtight fit and sound isolation
• Spare set of ear tips
• Supplied with a storage case made of domestic cowhide leather
• Made in Japan

Specifications

• Type: closed, in-ear
• Ear tips: silicone
• Frequency range: 4 - 90,000 Hz
• Impedance: 31 Ω ± 10%
• Sensitivity: 113 ± 2 dB
• Max. input: 20 mW
• Cable: 1.2 m, symmetrical
• Weight: 8.0 g
• Connector: 3.5 mm gold-plated angled jack
• Colour: Black