iBasso DX90 and AKG K550 – Impressive and disappointed

Got my hands on a DX90 a couple days ago, what a DAP. Its dual Sabre DAC delivers a lot of details in all ranges. From the high to the mid to the bass, I’m getting supreme quality. I don’t think there are emphasis on any range, they’re equally impressive. But as a little bit of a bass head, I do enjoy the quality and impact of DX90’s bass. unlike…

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