Audio Fix / setup help
FiiO K13 R2R: check why SAM is disabled in 1BIT mode
FiiO K13 R2R — check why SAM is disabled in 1BIT mode. Use the stated exact hardware and connection scope.
Manufacturer-documented Reviewed 2026-11-09 · Revision 1
Follow these checks in Audio Fix →When this guide applies
Exact FiiO K13 R2R. You cannot select SAM OS/NOS on K13 R2R while DSD1BIT is selected. This guide checks the exact mode dependency without changing the decoding path or promising a fault repair.
Connection scope: USB audio · Optical digital audio · Bluetooth. Symptom: An option or codec is missing.
This is a documented check, not a diagnosis of your equipment. The model name does not confirm the selected input, mode, software or connected partner.
If your exact model or a required setting is unknown, use the “I don’t know” branch below. Do not apply a similarly named model’s instructions.
Checks and possible outcomes
Start at scope. Follow the link that matches what you actually observe. Alternative branches are not a single sequence of actions.
scope
Confirm the model and connection
You cannot select SAM OS/NOS on K13 R2R while DSD1BIT is selected. This guide checks the exact mode dependency without changing the decoding path or promising a fault repair.
Look for: Confirm this exact setup and observation before continuing.
- If Yes, I confirm → Inspect the DSD mode
- If No / my setup differs → Continue with source and model support
- If I cannot confirm → More information is required
- Manufacturer-documented FiiO K13 R2R — official operation ↗Separate knobs, menu editing, soft power, SAM and DSD — K13 R2R menu-knob hold 2s enters settings; rotate then short-press edits/confirm. Separate volume knob handles volume/soft power. In DSD1BIT mode SAM is disabled and NOS is used for PCM and DSD; D2P allows SAM selection.Exact FiiO K13 R2R. · Source checked 2026-11-09
a1
Inspect the DSD mode
Hold the menu knob about 2 seconds for settings and inspect DSD. Continue only if it is positively set to1BIT.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Inspect SAM without forcing a change
- If I cannot complete this → Continue with source and model support
- If I cannot determine this → More information is required
- Manufacturer-documented FiiO K13 R2R — official operation ↗Separate knobs, menu editing, soft power, SAM and DSD — K13 R2R menu-knob hold 2s enters settings; rotate then short-press edits/confirm. Separate volume knob handles volume/soft power. In DSD1BIT mode SAM is disabled and NOS is used for PCM and DSD; D2P allows SAM selection.Exact FiiO K13 R2R. · Source checked 2026-11-09
a2
Inspect SAM without forcing a change
Observe that SAM is unavailable in this documented1BIT mode. Do not change gain, output or DSD mode merely to make a menu appear.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Record the dependency
- If I cannot complete this → Continue with source and model support
- If I cannot determine this → More information is required
- Manufacturer-documented FiiO K13 R2R — official operation ↗Separate knobs, menu editing, soft power, SAM and DSD — K13 R2R menu-knob hold 2s enters settings; rotate then short-press edits/confirm. Separate volume knob handles volume/soft power. In DSD1BIT mode SAM is disabled and NOS is used for PCM and DSD; D2P allows SAM selection.Exact FiiO K13 R2R. · Source checked 2026-11-09
a3
Record the dependency
For support record DSD1BIT and the unavailable SAM setting; the documented internal choice is NOS for both PCM and DSD in this mode.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Check the result
- If I cannot complete this → Continue with source and model support
- If I cannot determine this → More information is required
- Manufacturer-documented FiiO K13 R2R — official operation ↗Separate knobs, menu editing, soft power, SAM and DSD — K13 R2R menu-knob hold 2s enters settings; rotate then short-press edits/confirm. Separate volume knob handles volume/soft power. In DSD1BIT mode SAM is disabled and NOS is used for PCM and DSD; D2P allows SAM selection.Exact FiiO K13 R2R. · Source checked 2026-11-09
observe
Check the result
Are DSD1BIT and the corresponding unavailable SAM setting confirmed?
Look for: Confirm this exact setup and observation before continuing.
- If Yes, I confirm → Checks completed
- If No / my setup differs → Continue with source and model support
- If I cannot confirm → More information is required
- Manufacturer-documented FiiO K13 R2R — official operation ↗Separate knobs, menu editing, soft power, SAM and DSD — K13 R2R menu-knob hold 2s enters settings; rotate then short-press edits/confirm. Separate volume knob handles volume/soft power. In DSD1BIT mode SAM is disabled and NOS is used for PCM and DSD; D2P allows SAM selection.Exact FiiO K13 R2R. · Source checked 2026-11-09
Possible result
More information is required
An unknown state is not a diagnosis. Record the last visible indication and consult the exact model instructions.
insufficient data
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Continue with source and model support
Keep the source, connection and last observation. Do not reset, open equipment or change full-scale output to compensate for an unconfirmed result.
next support
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Checks completed
The requested observation was confirmed in this setup. It does not establish a hardware repair or guarantee another source behaves the same.
documented limitation
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
- Manufacturer-documented FiiO K13 R2R — official operation ↗Separate knobs, menu editing, soft power, SAM and DSD — K13 R2R menu-knob hold 2s enters settings; rotate then short-press edits/confirm. Separate volume knob handles volume/soft power. In DSD1BIT mode SAM is disabled and NOS is used for PCM and DSD; D2P allows SAM selection.Exact FiiO K13 R2R. · Source checked 2026-11-09