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Fosi Audio

Fosi Audio SK02 Desktop DAC/Amp — ES9038Q2M, 4.4mm Balanced

Fosi Audio SK02 Desktop DAC/Amp — ES9038Q2M, 4.4mm Balanced

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$85.99 USD
$85.99 USD
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The SK02 is a palm-sized desktop DAC/amp built around the ESS ES9038Q2M, with both 3.5mm single-ended and 4.4mm balanced outputs delivering up to 755mW at 32 ohms.

It decodes PCM up to 32-bit/384kHz and DSD256 over USB-C and doubles as a preamp through its 3.5mm line out, so it can sit between a computer and a pair of powered monitors as easily as it drives headphones. Strong value under $100 if you want balanced output and real desk power without committing to a full stack.

  • ESS ES9038Q2M DAC over USB-C
  • 3.5mm and 4.4mm balanced outputs, up to 755mW at 32 ohms
  • PCM 32-bit/384kHz, DSD256
  • Doubles as a preamp via 3.5mm line out

Authorized Fosi Audio retailer. Free US shipping over $49, 45-day returns, 1-year warranty.

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Good to know

Frequently asked questions

Is this unit genuine?

Yes. TonePier is an authorized retailer — every unit comes from the brand or its official distributor, carries a valid serial number and is covered by the full manufacturer warranty.

How long does shipping take?

SKUs stocked in our US warehouse ship within 1–2 business days. Items shipped direct from our China hub typically arrive in 8–15 days with full tracking. The product page tells you which applies before you order.

What if it isn't for me?

You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.