The Fosi Audio SK02 is a USB DAC + headphone amplifier that explicitly supports DSD256 and PCM decoding and offers both 3.5mm single‑ended and 4.4mm balanced outputs; it’s aimed at listeners wanting native high‑resolution decoding (DSD256) and balanced/headphone amp connectivity in a compact puck. Category context: solid for budget desktop Hi‑Fi DAC/amp use; check compatibility with your OS/device before buying.
Buy if you need a compact USB DAC/headphone amp with DSD256 support and balanced output; avoid if you require verified long‑term reliability data or specific measured specs.
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