SonicPro® In-Ear Headphones

MSRP* US$269.95

*Manufacturer's Suggested Retail Price. Actual selling price may vary; please check with an authorized Audio-Technica dealer.

  • in-ear headphones
  • high-quality in-ear headphones

  • Overview
  • Features
  • Specifications
  • Reviews
  • Q & A

  • Overview

    Featuring the world’s first dual phase push-pull driver system, the ATH-CKR9 in-ear headphones deliver amazingly clear, high-resolution audio. The unique push-pull system incorporates two 13 mm drivers that face each other, but are wired out of phase, providing lower harmonic distortion and improved damping and bass frequency control. Machined aluminum housings reduce unwanted resonance for crisp mid- and high-range audio, while a stainless steel acoustic resister and a bass acoustic resister provide accurate high-frequency and low-frequency response, respectively. The ATH-CKR9 in-ear headphones also come with four sizes of interchangeable eartips for a customized fit and outstanding sound isolation – another measure to help deliver audio reproduction that rivals the original sound.
  • Features

    • Delivers amazing, high-resolution reproduction of the original sound

    • World’s first dual phase push-pull drivers (13 mm x 2) provide extended frequency response by reducing intermodulation distortion

    • Machined aluminum housings greatly reduce unwanted resonance for crisp mid- and high-range reproduction

    • Stainless steel acoustic resister provides improved high-frequency response, while bass acoustic resister delivers accurate low-frequency response

    • Includes silicone eartips (XS/S/M/L) and protective carrying case
  • Specifications

    Driver Diameter13 mm x2
    Frequency Response5-35,000 Hz
    Maximum Input Power200 mW
    Sensitivity109 dB/mW
    Impedance12 ohms
    Weight12 g
    Cable1.2 m, Y-type
    Connector3.5 mm gold-plated stereo mini plug, L-shaped
    Accessories Includedsilicone eartips (XS/S/M/L) and protective carrying case

  • Reviews

  • Q & A

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    1 Question | 1 Answer
    Displaying question 1
    • Q:

      Will these or the CKR10 work with an iphone 5S?
      Asked on 4/17/2016 by Veyronvenom1200

      1 answer



        Both headphones feature a 3.5mm TRS Stereo Headphone connection. Therefore, both the CKR9 and CKR10 will both connect to an iPhone.

        If you have any further questions, please contact the Audio-Technica United States (ATUS) Audio Solutions Team at:


        Answered on 4/22/2016 by ATUS_Specialist2 from Stow, OH
    Displaying question 1

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