KEYSION Dual Chip CS43198+CT7601 Portable USB HIFI DAC& Mini Headphone Amplifier Lossless Portable Dongle DSD256 32Bit/768KHz
Audio/IEMs
“The KEYSION dual-chip dongle pairs a Cirrus Logic CS43198 DAC with a CT7601 front-end to support DSD256 and 32-bit/768kHz decoding and ships as a compact USB-C dongle form factor. It delivers true high-resolution decoding and pocketable portability, but reviewers and measurements for CS431xx-based designs warn of a DRE-related "Cirrus hump" distortion and undocumented DRE behavior that can cause subtle audible artifacts unless firmware or chip behavior is addressed.”
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Plays DSD256 and 32-bit/768kHz files for native high-resolution audio playback
youtube.comsupports EQ tuning and even has a mic for calls
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CS43198 flagship DAC delivers high-resolution decoding and wide dynamic range
keysion.shopCS43198 is Cirrus Logic's flagship stereo DAC
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Tiny, lightweight dongle design is highly portable for mobile listening
youtube.comvery small ... very light
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CS431xx devices can produce a "Cirrus hump" (DRE-related distortion) in some units
audiosciencereview.comproduce the distortion dubbed a "Cirrus hump"
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DRE (dynamic range enhancement) behavior is undocumented and may be impossible to disable without firmware
audiosciencereview.comDRE is not documented in Cirrus Logic datasheets
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Small dongles can exert pressure on the host USB-C port if left dangling
youtube.comif it dangles it doesn't put much pressure on the USB C Port