Astell&Kern PSF11 Layla 12 Drivers Per Side Universal Fit In-Ear Monitors

Astell&Kern PSF11 Layla 12 Drivers Per Side Universal Fit In-Ear Monitors

Astell&Kern PSF11 Layla 12 Drivers Per Side Universal Fit In-Ear Monitors

B&H # ASPSF11 MFR # 2EP008-CMBL67
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Product Highlights

  • Custom-Made Balanced Armature Drivers
  • 4th Order Crossover Network
  • +13 dB Boost at 60 Hz
  • soundrIVe Quad Driver Technology
  • FreqPhase Steel Tube Waveguide
  • 4-Pin Cable With Locking Collar
  • Includes A&K Balanced Cable
  • Five Sizes of Soft Ear Gels
  • Includes Hard Carrying Case
  • Includes Screwdriver and Cleaning Tool
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  • 1Description

A member of the "Sirens Series" designed by Jerry Harvey of JH Audio in collaboration with Astell&Kern, the PSF11 Layla 12 Drivers Per Side Universal Fit In-Ear Monitors are inspired by the song "Layla" by Derek and the Dominos. The universal in-ear monitors use 12 drivers per side (4x low, 4x mid, 4x high) to deliver a frequency response of 10 to 23,000 Hz into a 20 ohm load with a sensitivity of 117 dB at 1 mW.

The drivers are connected by a three-way crossover network using 4th-order slopes and include Jerry Harvey's soundrIVe quad-driver technology, as well as his FreqPhase stainless steel tube waveguide technology to align the time and phase of the drivers. The earphones feature a full carbon fiber body with "burnt" titanium bezel and carbon fiber logo insert. The drivers 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 section is designed to be flat from 10 to 5,000 Hz. The low driver section is designed to have a steep low pass with low distortion.

They utilize a 4-pin cable connection with a machined aluminum locking collar. Using the included screwdriver, the bass output of the cable can be boosted by as much as +13 dB at 60 Hz. An additional balanced output cable with a specific 2.5mm 4-pole terminal is included, which is intended for use with the Astell & Kern AK240 music player. A cleaning tool and a hard storage case are also included.

FreqPhase Technology
Uses stainless steel waveguide tubes to time and phase align the low, mid, and high frequencies of the headphones
Variable Bass Output Adjustable Cable
Allows for up to +13 dB of bass boost at 60 Hz by simply adjusting two screws with a screw driver
UPC: 821566014962
In the Box
Astell&Kern PSF11 Layla 12 Drivers Per Side Universal Fit In-Ear Monitors
  • 5 x Sets of Ear Gels
  • Screwdriver
  • Cleaning Tool
  • Balanced A&K Headphone Cable
  • 4-Pin Cable Connection with Machined Aluminum Locking Collar
  • Hard Shell Protective Storage Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Drivers Custom-Made Balanced Armature Drivers: 12 drivers per side (4x low, 4x mid, 4x high)
    Crossover Three-way network with 4th-order crossovers
    Frequency Response 10 to 23,000 Hz
    Input Sensitivity 117 dB at 1 mW
    Impedance 20 ohm
    Dimensions Not specified by the manufacturer
    Weight Not specified by the manufacturer
    Packaging Info
    Package Weight 1.85 lb
    Box Dimensions (LxWxH) 7.3 x 5.4 x 4.2"

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