KLH Ultimate One Open-Back Over Ear Headphones

Model: KLHF00046 UPC: 818031010314 Item: 3269

$299.98 OR

In Stock
Shipping Information
Show Store Details
754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
  • Mon: CLOSED
  • Tues - Sat: 10AM - 5PM
  • Sun: CLOSED
(215) 368-8343
Show Store Details
38 Greenfield Avenue, Ardmore, PA 19003
  • Mon: CLOSED
  • Tues - Sat: 10AM - 5PM
  • Sun: CLOSED
(610) 649-7002
Choose a Store Location

More Product Details

Our product experts are here to help

Questions? We're here to help.

Product Information

The KLH Ultimate One is a premium, high-performance, Over-Ear, Open-Back dynamic headphone for true high-fidelity stereo listening via either a wired 3.5mm or 1/4” adapter connection.


  • 50mm Pure Beryllium Driver.
  • Headband & Earpads use premium lambskin and top-grade cowhide leathers with dual-layer memory foam for ultimate comfort and maximum durability.
  • Solid, Real Ebony wood earcups for eye-catching beauty and acoustic integrity.
  • Extremely comfortable and lightweight at only 12 ounces/340grams.
  • 32 Ohm impedance
  • 97 dB sensitivity
  • Frequency response: 18 Hz to 22kHz +/- 3db
  • 108 db SPL
  • 2 meter detachable, 3.5mm pure silver-litz braided cable (¼” adapter included)
  • KLH Branded, hard-sided black leather travel case plus a luxuriously soft velour carry bag.
  • 2-year Warranty



  • Over-Ear, Open-Back Design
  • 50mm Pure Beryllium Driver
  • Headband & Earpads: Lambskin Inner For Ultimate Comfort, Cowhide Leather Outer for Durability
  • Real Wood Earcups
  • 32 Ohm Impedance
  • 108 dB SPL
  • 1.8 mW Input Power Max
  • Frequency Response: 18-22kHz
  • 2 Meter Cloth Covered Cable
  • 3.5mm to 1/4in Adapter
  • Cloth Travel Bag
  • Black Leather Hard Carrying Case

What's in the Box

 What's in the Box

  • Ultimate One Headphones
  • Hard Shell Black Leather Carry Case
  • Cloth Cinch Bag
  • 2 Meter – 3.5mm cord
  • 3.5mm to .25” Adapter




Customer Reviews for KLH Ultimate One Open-Back Over Ear Headphones

5.0 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Superb quality, beautiful design and incredible performance at an awesome price point! You won't be disappointed! Just buy them!
Purchased the KLH Ultimate One headphones after careful research and positive user reviews.

After listening to these headphones in the quiet comfort of my living room, utilizing assorted media playback, ie; cd, phono, mp3 and audio streaming, I must say I am very impressed with the overall sound quality and design of this product.

Although some reviews compare these as a rebrand of the Sivga sv007's, they are not! There is a distinct, albeit not necessarily visual difference between the two products. The upgraded components of the build including the lambskin leather cup coverings, the silver little braided cable and of course the driver's driver's, to name the obvious make a noticeable difference in overall quality and performance.

There are quality headphones out there in a lesser price range and there are perhaps better headphones out there at a much higher price point, but for the money I would say you'd be struggling to find one better at this cost. I would definitely recommend and purchase these again.

As always, World Wide Stereo filled my order and shipped flawlessly. An absolute pleasure doing business with World Wide Stereo!
April 23, 2021
5 months ago


Customer Q & A

Have a functionality, compatibility, or otherwise product-specific question about this product? Ask it here! If you have a customer service or shipping question, please direct it to our customer service department

Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!