$229.98 + Free Shipping
Add to Cart

Other Sellers on Amazon
Add to Cart
+ $4.65 shipping
Sold by: HiFiMAN
Have one to sell? Sell on Amazon

Image Unavailable

Image not available for
  • Yuin OK1 Earphones
  • Sorry, this item is not available in
  • Image not available
  • To view this video download Flash Player

Yuin OK1 Earphones


List Price: $299.00
Price: $229.98 & FREE Shipping
You Save: $69.02 (23%)
In Stock.
Ships from and sold by SHENZHENAUDIO.
  • Impedance:150 ohm (at 1 KHz)
  • Frequency response: 20-24,000 Hz
  • Sensitivity:109 dB (at 1 KHz)
  • Headphone amp or high output portable player required
  • Maximum Input Power: 1000 mv
3 new from $225.33

Special Offers and Product Promotions

  • Amazon Free 30-Day Tech Support: This item is eligible for free tech support for 30 days from the date of delivery. Over the phone, our trained technicians can help you set up, configure, connect, and troubleshoot so you can start enjoying your new purchase. Owners of qualifying products can reach Tech Support by calling 1-800-362-5703. Learn more

Technical Details

  • Stereo Deep Bass

Product Details

  • Shipping Weight: 5 ounces (View shipping rates and policies)
  • ASIN: B001MQ22XO
  • Item model number: OK1
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Date first available at Amazon.com: November 30, 2008

Product Description

* Earbuds / In-ear Earphone Convertible design * Neutral sound signature * Best high extension in earphone product

Customer Questions & Answers

Customer Reviews

5.0 out of 5 stars
5 star
4 star
3 star
2 star
1 star
See the customer review
Share your thoughts with other customers

Most Helpful Customer Reviews

1 of 1 people found the following review helpful By Paul Holsinger on April 7, 2014
Verified Purchase
Look, you want perfect sound, you need isolation from noise. For that you need an IEM, but anyone who spends a decent amount of time listen to them knows, you're ears will ache eventually. Now sure you can pay a bit more and get a custom made earpiece, but really, you bring that thing into the office with you and you're gonna look like an idiot.

These ear buds look like anything you might buy anywhere. You plug them in and no one would know them from something that came in the box with their phone or i-whatever. But you'll know...you'll know because it will seriously sound like the musician just unpacked his instrument, and started playing it right in front of your desk. These things meld with the sound in the room like open air cans do, so you don't get sound isolation, but if you're at work, you don't really want that. They isolate enough not to bother the guy in the desk next to you, but if he turns to get your attention you can still hear him. They are perfect from an office politics standpoint.

Considering that they aren't IEM's the sound quality is magical. Open, precise, neutral, and transparent. A little base light but nothing that can't be fixed with a little EQ there if you prefer a little more thump. They don't distort no matter how much base you throw at them.

Sure they are high impedance and they need to be driven hard. You can still hear them fine without an external amp, but they are going to be noticeably quieter then most any other earbud you could buy, and if you want to hear their full potential you simply need an amp. Most would say you need an amp no matter the sensitivity or impedance of the headphone/bud...but I see it as all relative and these simply relatively need an amp.
Read more ›
1 Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again

Customer Images