SonicPro® In-Ear Headphones


Out of Stock
  • Overview
  • Gallery
  • Features
  • Specifications
  • Reviews



  • 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


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.


Driver Diameter Dynamic, 13 mm x 2
Frequency Response 5 - 35,000 Hz
Maximum Input Power 100 mW
Sensitivity 106 dB/mW
Impedance 49 ohms
Weight 12g
Cable 1.2 m (Y type)
Connector 3.5 mm gold-plated stereo mini plug (L-shaped)
Accessories Included Earpieces(XS,S,M,L), Case