Audio-Technica ATH-CKR9 Review – Old But Gold

Old But Gold

Audio-Technica Japan

Disclaimer: I am writing a review of the Audio-Technica ATH-CKR9 based on my personal impressions. I own a pair myself and was not requested to write this in any way.

Audio-Technica is an audio company based in Japan and was founded in 1962. They released the popular ATH-M50x headphones but are no slouch when it comes to iems, with IM02 being popular and continue being a strong performer.

The CKR9 is one of the two that debuted with push-pull drivers (The other being CKR10). They supposedly reduce distortion by having 2 dynamic drivers moving in opposing phases.

You can skip to sound impressions on the next page here.


This gem has been with me for years. It was the one responsible for getting me hooked on this hobby.

This may be a weird choice for a review. After all, at its price point, it is no technical monster, nor does is it sonically extremely superb. But again, while price to performance is important, it is not everything in my opinion. This is a tiny piece of history, with a uniqueness that I haven’t yet found a replacement for.

Before I continue, first note that due to the burn-in requirement of this iem, the sound will have a noticeable change over time and will defer from each person. Also, feeding the CKR9 power does change its sound profile noticeably, more on it under sound impressions.

Sound impressions will be on the next page

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