The Ultimate One Headphones feature an over-ear, open-back design with a 50mm pure beryllium driver. The headband and ear pads feature soft lambskin inner sections for ultimate comfort, with cowhide leather outer sections for lasting durability. Real Sustainable Zebrawood or Ebony wood ear cups. Frequency response is rated at 18Hz-22kHz.
Old blokes frequently know a thing or two.
Founded in 1957 in Cambridge, Massachusetts, KLH is a company of ground-breaking firsts and has created some of the bestselling speakers in the world. KLH stands behind their products with a strong commitment to quality and performance for years beyond the purchase.
Henry Kloss, the iconic founder of KLH, was fondly dubbed by Wes Phillips of Stereophile Magazine as “The Man Who Changed Audio and Video – Time and Time Again”. He co-developed the first acoustic suspension speaker, introduced the world’s first full range electrostatic speaker, launched the first-ever high-selectivity FM radio, and won an Emmy Award for the first large screen projection television for home use. For his innumerable contributions to the Consumer Electronics Industry, Henry was one of the first inductees into the regaled CEA Hall of Fame, along with the likes of Thomas Edison, Alexander Graham Bell, Ray Dolby, and Avery Fisher.
|Style||Over ear open air design|
|Driver Diameter||50 mm|
|Cable||2m Tangle-Resistant Cable|
|Sensitivity (1mW)||108 dB SPL|
|Power Handling||1.8mW input power max|
|Impedance (1kHz)||32 ohms|
|Input Connections||3.5 mm|
|Color||Real Ebony or Zebra Wood|
"Top Choice" 2019
My hunt for “perfect” headphones will never end because no one single design covers all uses. But, my hunt for the perfect pair of passive, open-back dynamic headphones could easily end with the KLH Ultimate One headphones.
Mark Henninger, June 13, 2019, AVS Forum
HiFi News Outstanding Product Award Sept 2019
In the immensely respected HI-FI News Magazine review September 2019 they said:
"These debut headphones offer excellent value for money. Finish is superb, the styling familiar"
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