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FiiO

FiiO K9 Pro ESS Desktop DAC/Amp

FiiO K9 Pro ESS Desktop DAC/Amp

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$590.99 USD
$590.99 USD
Sale Sold out
Shipping calculated at checkout.
Title

The FiiO K9 Pro ESS is a desktop headphone amplifier and USB DAC with dual ES9068AS chips, THX AAA 788+ amplification, LDAC and DSD512 support. It is the flagship end of FiiO's desktop line and built to be the last amp on a desk for a long while.

THX AAA 788+ is the well-known low-distortion topology that made THX modules a default recommendation for people who want the amp to stay out of the way. Dual ES9068AS handles conversion with a channel per side, and DSD512 covers whatever your library throws at it. LDAC is the concession to real life — good wireless playback when you are not sitting down for a session. This is a serious match for demanding full-size headphones.

  • Dual ES9068AS DAC chips, DSD512 support
  • THX AAA 788+ amplification, LDAC Bluetooth
  • Authorized FiiO retailer, 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.