FiiO K13 R2R
L2 · Documented recordChoose K13 R2R when R2R conversion, high-voltage balanced headphone output and PEQ are specifically required.Desktop R2R DAC/headphone amplifier with 6.35 mm and 4.4 mm outputs; official ratings reach 150 mW per channel single-ended and 600 mW balanced into 300 ohms.
- 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
Updates & issues, along a timeline.
Latest record first. Expand to read the complete documented history.
Firmware & software
No matching public record has been added. This is not proof that no issue or update exists.
Product issues
No matching public record has been added. This is not proof that no issue or update exists.
Complete history: 0 records. Product, brand and update views use the same canonical event identifiers. Event date and source-check date remain distinct.
Where it fits
A desktop USB/S/PDIF DAC, headphone amplifier and line-output source.
Limits: An analogue hub, HDMI device, streamer, phono stage or speaker amplifier.
Keep the conditions visible
R2R and NOS/OS are preferences, not proof of superior sound.
Full test scope, specifications & owner feedback ↓Full specifications, test scope, existing assessments & owner feedback
FiiO K13 R2R
A desktop R2R DAC, headphone amplifier and RCA preamplifier with USB, optical, coaxial and Bluetooth inputs.
Where it fits
- 300-ohm headphones through its verified balanced output
- USB DAC to powered speakers
- Listeners specifically seeking selectable R2R modes
- Desktop 4.4 mm and 6.35 mm headphone use
Where it does not fit
- Balanced XLR line output is required
- A network streamer is required
- Headphone matching must be decided without sensitivity or target-level data
Interfaces and capabilities
Recorded capabilities
Recorded connections
- Input: Coaxial S/PDIF
- Input: Optical S/PDIF
- Input: USB audio
- Output: 4.4 mm balanced headphone
- Output: 6.35 mm headphone
- Output: RCA line
| Headphone output power | at least 150 mW/channel300ohm · source ↗ |
|---|
Firmware and evidence status
Current in the 10 August 2026 evidence snapshot. Recheck firmware release notes when a protocol, app workflow or restart behaviour is decision-critical.
Open the official product source ↗
Last source review: 10 August 2026. An omitted feature means “not recorded here”, not automatically “unsupported”.
Related scenarios and articles
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Member knowledge · editor reviewed
Questions, owner experience and product issues
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