I was skeptical at first but it sounds fantastic. In fact, any review that talks about mids, highs, and bass frequencies is completely true. There's a tiny... and I mean almost imperceptible loss of the S sound at certain pitches, as mentioned in one review, but that's what you need to hear, and when I don't hear it. I can't hear him. Get a balanced cable like mine. They are formed behind the ears and generally fit like a glove. Most IEMs cause me some ear fatigue and I don't think advice usually helps with that. I also think there is a bit of a pause in time as your ears get used to the IEM and mine were a bit tender after a few hours of use. It seems to have gotten better. All in all they sound as good or even better than my SENHEISER HD 650s and I feel very comfortable transporting them. Second, I paired this with a FiiO BTR5 and listened to a Bluetooth LDAC with 24-bit music loaded with 7 digital and HD tracks. They sound good and overall I'm very happy with the quality.
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