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Yuin OK1 Earphones

Yuin OK1 Earphones

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One Shade of Grey

In the headphone game, there are so many extremes and variations that finding the perfect pair can be more of a crapshoot than a science. Once you move into buds and inner ear monitors, where shape is even more important to comfort, you don’t want black or white, but a well designed and powerful shade of grey. Giving you a pair right in the middle, the Yuin OK1 Earphones combine superior comfort and top performance.

Yuin OK1 Earphones

Stay in the Shallows

Ear buds rest outside of your ears and IEMs burrow into the ear canal, but the OK1 sits in the blissful zone in between, deep enough to deliver full sound and shallow enough to keep you comfy. Because of this hybrid design, the OK1 never achieves full isolation, but its integration of outside sounds makes it perfect for city strollers or office workers that need to stay aware of their surroundings. If any part of the audio is not to your liking, switch out the included tips and spacers to find the right rig.

Yuin OK1 Earphones

More Than Just OK

To get the most out of these phones, it’s best to use the OK1 with a headphone amplifier, although it is not required. Even on its own, you can hear thick bass, full mids, and sharp highs across a range of music and file types. Boasting low impedance and distortion, excellent instrument separation, and enough accessories to completely customize your set-up, the Yuin OK1 Earphones split the difference between buds and monitors for just the right pair.

Yuin OK1 Earphones


  • Impedance- 150 Ohms at 1 KHz
  • Frequency response- 20 - 24,000 Hz
  • Sensitivity- 109 dB at 1 KHz
  • Maximum input power- 1000 mv
  • Diameter- 3.5 mm
  • 6 ft (1.83 m) Y Cord
  • 1/8 in (3.5 mm) audio jack


  • 1/4 in (6.3 mm) adapter plug
  • 4 in-ear tips
  • 4 ear bud tips
  • Storage box
  • 3 set converters
  • Carrying case


Estimated ship date is Nov 6, 2014 PT.

Payment will be collected at checkout. After this product run ends, orders will be submitted to the vendor up front, making all orders final.

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