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In-Ear Headphone Aluminum Sonic Pro Push Pull Drive Syst / Mfr. No.: Ath-Ckr9

In-Ear Headphone Aluminum Sonic Pro Push Pull Drive Syst / Mfr. No.: Ath-Ckr9
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Item Number: aud-athckr9
Vendor Number: ATH-CKR9
Vendor: Audio Technica -Pro Sound
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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 also comes 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.

General Information

ManufacturerAudio-Technica U.S., Inc
Manufacturer Part NumberATH-CKR9
Manufacturer Website Address
Product LineSonicPro
Product ModelATH-CKR9
Product NameSonicPro In-Ear Headphones
Product TypeEarphone

Technical Information

Connectivity TechnologyWired
Cable Length3.94 ft
Sound ModeStereo
Impedance12 Ohm
Minimum Frequency Response5 Hz
Maximum Frequency Response35 kHz
Connector PlatingGold Plated
FeaturesInterchangeable Eartip


Earpiece DesignEarbud
Earpiece TypeBinaural
Driver Size0.51"
Earpiece Sensitivity109 dB


Host InterfaceMini-phone

Physical Characteristics

Form FactorIn-ear
Weight (Approximate)0.42 oz


Package Contents
  • SonicPro In-Ear Headphones
  • 4 x Sizes of Silicone Eartips (XS/S/M/L)
  • Protective Carrying Case


Limited Warranty1 Year
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