Product record · DAC / headphone amplifier / preamplifier

FiiO K17

L2 · Documented recordChoose K17 when digital and analogue inputs, powerful headphone outputs, PEQ and balanced pre-out must share one desktop chassis.

Desktop DAC/headphone amplifier and preamplifier with USB, optical, coaxial and analogue inputs, RCA/XLR line outputs and verified 300-ohm power.

K17DAC / headphone amplifier / preamplifier
System role
DAC / headphone amplifier / preamplifierConfirm the complete connection path
Documented official version
No recorded versionNo dated release recorded
Independent test scope
No dated SPL test recordedPublished scope and limitations remain separate
Source checked
2026-09-24A source-check date is not a new device test
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Firmware & software

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Complete history: 0 records. Product, brand and update views use the same canonical event identifiers. Event date and source-check date remain distinct.

System role

Where it fits

A DAC, headphone amplifier, preamp and basic input switcher.

Limits: A streamer, HDMI hub, phono stage or speaker amplifier.

Evidence & support

Keep the conditions visible

It is a routing/control upgrade over simpler DAC/amps, not a universal sonic upgrade.

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Full specifications, test scope, existing assessments & owner feedback
Product profile · DAC / headphone amplifier / preamplifier

FiiO K17

A feature-rich desktop DAC, headphone amplifier and balanced preamp with verified power for 300-ohm headphones.

Evidence grade ASnapshot public-beta-2026-08-09-v7Unknown ≠ supported
Record status
Published profile
Evidence checked
2026-08-09
Evidence grade
A
Commercial weight
0
Best for

Where it fits

  • 300-ohm headphones
  • USB DAC to powered speakers
  • Balanced preamp output
  • Desktop PEQ
Avoid if

Where it does not fit

  • A network streamer is required
  • The smallest portable form factor is required
  • A default sensitive-IEM path is the priority
Verified product record

Interfaces and capabilities

Recorded capabilities

Recorded connections

  • Input: USB audio
  • Input: Optical S/PDIF
  • Input: Coaxial S/PDIF
  • Input: RCA line
  • Input: Balanced XLR
  • Output: RCA line
  • Output: Balanced XLR
  • Output: 6.35 mm headphone
  • Output: 4.4 mm balanced headphone
  • Output: 4-pin XLR headphone
Headphone output powerat least 240 mW/channel300ohm · source ↗
Headphone output impedanceunder 1 ohmheadphone_output · source ↗
Key limitationPublished high-power noise figures make low-gain IEM use a separate verification case.
Change tracking

Firmware and evidence status

Current in the 9 August 2026 evidence snapshot. Recheck firmware release notes when a protocol, app workflow or restart behaviour is decision-critical.

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Last source review: 9 August 2026. An omitted feature means “not recorded here”, not automatically “unsupported”.

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