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Fosi Audio

Fosi Audio DS3 Balanced DAC/Amp Dongle

Fosi Audio DS3 Balanced DAC/Amp Dongle

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$95.99 USD
$95.99 USD
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The Fosi Audio DS3 is a balanced HiFi DAC/amp dongle carrying both a 4.4mm balanced and a 3.5mm single-ended headphone output. It's the practical pick if half your cables are balanced and half aren't, and you don't want to carry two dongles.

Plug it into a phone or laptop and it becomes your portable source: 4.4mm for IEMs you've already re-terminated, 3.5mm for everything else. Handy for commuting, office listening, or as a travel backup to a desktop stack.

  • Balanced 4.4mm plus 3.5mm single-ended outputs
  • Pocketable dongle form factor for phone or laptop

Authorized Fosi Audio retailer. Free US shipping over $49 and 45-day returns.

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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.