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FiiO

FiiO Darkside Pro Linear Power Supply

FiiO Darkside Pro Linear Power Supply

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$192.99 USD
$192.99 USD
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The FiiO Darkside Pro is a low-noise linear power supply with adjustable output voltage for audio equipment. It replaces the switching wall wart that shipped with your DAC or amp — the component manufacturers cost-cut first and the one most likely to be dumping noise into your system.

Adjustable voltage means one unit can serve different devices as your rack changes, rather than being locked to a single component. Most useful on gear with sensitive analog stages or a noticeable noise floor through efficient IEMs. If you hear hiss or hum you can't trace, the wall adapter is worth ruling out first.

  • Low-noise linear power supply for audio components
  • Adjustable output voltage for multiple devices
  • Authorized FiiO retailer, 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.