FiiO
FiiO K11
$142.99Cheaper
Best Dac Amps · head-to-head
FiiO K11 vs SMSL DO100
A sourced, side-by-side comparison. FiiO K11 is cheaper at $142.99. Every spec and price links to its source.
SMSL
SMSL DO100
$239
Which is better: the FiiO K11 or SMSL DO100?
The SMSL DO100 wins 1 of the 1 specs we compare head to head; the other wins 0. The FiiO K11 is the cheaper at $142.99. Get the SMSL DO100 for the stronger spec sheet, the FiiO K11 to spend less.
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Key specs, head to head
The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  FiiO K11 |  SMSL DO100 |
|---|---|---|
| US price | $142.99 | $239 |
| Brand | FiiO | SMSL |
| Released | — | — |
| Form factor | desktop | desktop |
| Dac chip | CS43198 | ES9038Q2M |
| Max pcm (kHz) | 384 | 768 |
| Max dsd | DSD256 | DSD512 |
| Max power mw | 1400 | — |
| Snr (dB) | 123 | — |
| Thdn percent | 0.00035 | 0.00008 |
| Balanced output | Yes | No |
| Headphone jacks | 6.35mm/4.4mm | none |
| Digital inputs | USB-C/optical/coaxial | USB-C/optical/coaxial/Bluetooth |
| Weight grams | 407 | — |
Sources — FiiO K11: fiio.com (verified 2026-07-11). SMSL DO100: smsl-audio.com (verified 2026-07-11).
What's the difference between the FiiO K11 and SMSL DO100?
Where the two actually differ on the specs we track (7 of 11). Matching specs are omitted.
- Dac chip: FiiO K11 CS43198 vs SMSL DO100 ES9038Q2M
- Max pcm (kHz): FiiO K11 384 vs SMSL DO100 768
- Max dsd: FiiO K11 DSD256 vs SMSL DO100 DSD512
- Thdn percent: FiiO K11 0.00035 vs SMSL DO100 0.00008
- Balanced output: FiiO K11 true vs SMSL DO100 false
- Headphone jacks: FiiO K11 6.35mm/4.4mm vs SMSL DO100 none
- Digital inputs: FiiO K11 USB-C/optical/coaxial vs SMSL DO100 USB-C/optical/coaxial/Bluetooth
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
FiiO K11
Positive but single-sourced: among whitelisted testers, only SoundGuys published a hands-on review of the exact standard K11 (What Hi-Fi and TechRadar covered only the R2R variant or other FiiO DACs). SoundGuys praised the clean, detailed output, plentiful I/O and compact size, but flagged a clunky menu, over-bright default LED and too-light chassis. No lab measurements taken. (1 sourced review.)
Praised: Clean, detailed output with no noticeable coloration; Plentiful I/O (optical/coax/USB in; 6.4mm + 4.4mm outputs run simultaneously; line out); Compact, desktop-friendly size with Mac-like aesthetics.
Flagged: Clunky, unintuitive menu; changing gain is a 4-step operation; Default LED is too bright blue and awkward to turn off; Too light; feet lack grip so the unit slides when plugging in headphones; external power brick.
SMSL DO100
No sourced tester review yet.