Specifications

Colors: Obsidian black / Midnight silver / Titanium
Main Control Chip: GD32F303RET6
DAC: CS43198
Supported Audio Formats: 384 kHz/32‑bit PCM, DSD256
USB Connector: Type‑C
Display Type: Custom LCD
Dimensions (W×H×D): 147 mm × 133 mm × 32.3 mm (incl. feet)
Weight: ≈407 g
Power Supply: External DC‑12 V 2 A adapter
SE Power Output 1 (High Gain): L+R ≥520 mW +520 mW @32 Ω, THD+N <1%
SE Power Output 2 (High Gain): L+R ≥60 mW +60 mW @300 Ω, THD+N <1%
BAL Power Output 1 (High Gain): L+R ≥1400 mW +1400 mW @32 Ω, THD+N <1%
BAL Power Output 2 (High Gain): L+R ≥250 mW +250 mW @300 Ω, THD+N <1%
Frequency Response: 20 Hz – 50 kHz (attenuation <0.2 dB)
Signal‑to‑Noise Ratio: ≥123 dB (A‑weighted)
Noise Floor PO: <2.8 µV (A‑weighted)
Noise Floor BAL: <4.9 µV (A‑weighted)
Output Impedance PO: <1.2 Ω @32 Ω load
Output Impedance BAL: <2.4 Ω @32 Ω load
THD+N LO: <0.00035% @1 kHz/10 kΩ
Gain Levels: 3 (high, medium, low)
Volume Curves: 3 (one per gain level)
Input Types: USB‑C, optical, coaxial
Output Types: 4.4 mm, 6.35 mm, RCA line‑out, coaxial
Coaxial Output Mode: USB mode only
Driver‑Free Mode: Windows 10+ and PS5/Switch compatible
RGB Logo Lighting: Adjustable brightness, color, pattern via knob
Multi‑function Knob: Power, menu, volume, track control, mode switch
Packaging Includes: K11 unit, power adapter (AC cable), USB A‑to‑C cable, 6.35 mm adapter, quick start guide, warranty card

Photos

The product is a black, rectangular device with a glossy finish and visible ports on the right side.

The product is a black, rectangular device with rounded edges and a small digital display showing 'LOAC' and battery level.

What reviewers say

SoundGuys’ review praises the Fiio K11 for its compact size, clean audio output and extensive I/O options, while noting a clunky menu system and that it feels too light. The reviewer concludes that the K11 is a solid budget DAC for upgrading desktop listening, though recommends headphones or IEMs first if spending over $100.
www.soundguys.com ↗
The review concludes that the Fiio K11 is an excellent first serious DAC/amp for a desktop setup, praising its ability to drive a wide range of headphones efficiently while delivering smooth timbres and enhanced imaging. The author highlights the device’s elegant design, solid build quality, easy usability, and overall value at a budget price point.
majorhifi.com ↗
The review describes the FiiO K11 as a compact, clean‑looking desktop DAC/amp that offers balanced output and solid power for most headphones. The author praises its minimalist design, easy setup, RGB lighting customization, and value proposition, while noting minor drawbacks such as an imperfect rubber pad, light weight that can cause movement, and the omission of an optical cable in the box.
homestudiobasics.com ↗

Our take

Based on 3 reviews

All three reviews agree the FiiO K11 is a compact, budget-friendly desktop DAC/amp with clean audio and extensive I/O. SoundGuys, majorhifi.com, and homestudiobasics.com highlight its solid build, value, and ease of use for desktop setups. Based on their tests, we conclude it is a strong entry-level choice for upgrading listening.

Two of the 3 reviews note drawbacks: SoundGuys calls the menu clunky and the unit too light, while homestudiobasics.com cites an imperfect rubber pad and missing optical cable. majorhifi.com does not mention these issues. Buyers should weigh these minor flaws against the device’s power and value, considering it best for budget desktop users who prioritize clean sound over premium build details.