Astell & Kern

Astell & Kern - JH Audio Collaboration Rosie Universal Fit Earphones



Regular price $0.00 $799.00 Sale Save $-799.00 (Liquid error (sections/product-template.liquid line 196): divided by 0% OFF)

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Product Details from the Brand

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1 Year Warranty. Free expedited shipping. 

  • Custom-Made Balanced-Armature Drivers
  • 10 Hz to 23 kHz Frequency Response
  • 17-Ohm Impedance
  • Variable-Bass Output
  • Two Detachable Audio Cables
  • Includes Five Sets of Silicone Eartips
  • Carry Case

*This item is noncancelable and nonreturnable

Custom-made Proprietary Balanced Armature Drivers (8BA per side)
• Powered by soundrive technology: Dual low, Dual Mid and Quad High balanced armature drivers per side
• Variable bass output, adjustable from cable: user-controlled low-frequency drivers with the adjustable bass (0 - +15dB). Frequency ranges from flat bass response up to +15dB (10Hz to 100Hz)
• Integrated 4th Order crossover
• Triple Bore with Stainless Steel Tubing
• Noise Isolation -26dB

Featuring six custom-made dual-low, dual-mid, and quad high-balanced armature drivers per side, the in-ear monitors have a variable-bass output, which is adjustable from the cable, and delivers frequency ranges from flat bass response up to +15 dB (10 to 100 Hz).


Full Metal Jacket
Each body, cap, and sound bore is machined from one solid block of aluminum with a carbon fiber logo-plate insert
Proprietary Driver Design
This series of (In-Ear Monitors) IEM's were designed to be used as a mastering-reference tool because the high driver was designed for optimum top-end extension with minimal distortion. The mid driver is perfectly flat from 10 Hz to 5 kHz. The low driver is designed for steeper low-pass frequencies with virtually no distortion
FreqPhase Technology / Stainless-Steel Tube Waveguide
FreqPhase corrects time and phase of multiple drivers. The waveguide ensures that each driver signal arrives within 0.01 ms, resulting in a phase-coherent IEM
Variable-Bass Output Adjustable from Cable
User-controlled low-frequency drivers have an adjustable bass (0 - +10 dB). Frequency ranges from flat bass response up to +10 dB (10 to 100 Hz)
In the Box
  • 5 x Sets of Silicone Eartips
  • Screwdriver
  • Cleaning Brush
  • 2.5 mm to 2.5 mm Balanced Cable
  • 3.5 mm to 2.5 mm Unbalanced Cable
  • Carry Case
  • Limited 1-Year Warranty


Type Universal fit IEM (In-Ear Monitor)
Driver Unit Custom-made proprietary balanced-armature driver (8 BA per side)
Frequency Response 10 Hz to 23 kHz
Input Sensitivity 117 db @ 1 mW
Impedance 17 Ohms
Dimensions Not specified by manufacturer
Weight Not specified by manufacturer

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Astell & Kern - JH Audio Collaboration Rosie Universal Fit Earphones


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