FIIO K11 Desktop 1400W Power Balanced Headphone DAC & Amplifier 384kHz/24Bit DSD256 for Home Audio/PC 6.35mm/4.4mm/RCA/Coaxial/Optical (Black)

I am running as a DAC/headphone amplifier for a Bluesound streamer via the optical connector. I have a pair of Audeze LCD-2 headphones which are tough to drive and for which I have upgraded to a 4.4mm balanced cable. The FIIO K11 drives the big Audezes with ease and the combination sounds great - detailed with clear, deep bass, clear midrange and nice high frequency definition without sounding shrill or sibilant. The menus are very easy to navigate - I migrated from a Chord Mojo2 which was a nightmare with all its coloured LEDs (it eventually died and I have not got round to getting it fixed yet). I am very happy with the FIIO K11 and would recommend it strongly. For the price it is an absolute steal!

I'm using the FiiO K11 to power my HIFIMAN Ananda Nano, it gets loud and very clear. The RGB FiiO logo adds a touch of luxury.

Using it as DAC to connect tablet,chromecast audio,arylic s50 pro plus in and out to behringer fb800 with marantz sr7500 the result is amazing. The clarity and separation is perfect.

Le FIIO K11 est une vraie réussite ! Ce DAC/ampli offre un son clair, puissant et précis, avec une excellente dynamique. La prise en charge du DSD256 et du 384 kHz/24 bits permet de redécouvrir ses morceaux préférés avec un niveau de détail impressionnant. Les multiples sorties (6,35 mm, 4,4 mm, RCA, coaxial, optique) rendent ce petit boîtier ultra polyvalent, parfait pour un usage sur PC, Mac ou système audio domestique. La puissance de sortie est largement suffisante pour driver des casques exigeants. La finition noire est sobre et élégante, et la prise en main est simple, même pour les non-initiés. Rapport qualité-prix imbattable dans cette gamme ! Je recommande chaudement aux audiophiles comme aux utilisateurs en quête de meilleur son au bureau

I have been using the FiiO K11 for about a month and the performance has been phenomenal. After plenty of research, this seemed like the best option for me in terms of quality, power, and future-proofing PROS: -natural and neutral sound output -relatively sleek/compact -premium construction -satisfying and tactile metal knob -RGB lighting -powerful output, much more than needed for my Sennheiser HD599 with ample headroom for harder to drive headphones -has RCA outputs with simple controls to switch between headphone out and line out (double click knob) CONS: -while it is adjustable in brightness, the RGB is a bit too bright even at the lowest setting, leading me to turn it off completely since I use it in the dark a lot -this isn’t much of a con, but it is quite light which allows it to be accidentally moved by tugs on the attached cords -it does not have an auto standby function, and while turning it off is as easy as holding the knob for 5 seconds, it is still a bit of a hassle Overall, the FiiO K11 is an awesome addition to my desktop setup that allows for high fidelity audio with plenty of headroom for harder to drive headphones. It is very aesthetically pleasing and I don’t think I’ll ever want to or have a need to upgrade it

Good, high quality. Sound it more powerful and punchy. Doesn't take up too much room, good settings for the onboard RGB as well! Good weight, suitable for a desk. Good value for money and very easy to setup, albeit poor instructions.

Perfect for my hd560s

The FiiO K11 is a compact, feature-rich desktop DAC/amp that aims to deliver high-quality audio without breaking the bank. Positioned as an entry-level unit in FiiO’s lineup, it offers a sleek design, versatile connectivity, and enough power to drive most headphones—all for around $159. The sound is clean, detailed, and largely neutral—though not without quirks. While many users report a pleasant listening experience with no coloration, others have noted issues with the digital filters, describing the sound as “compressed” or “plastic” depending on the preset. Filter 4 is often cited as the most natural The FiiO K11 (non-R2R) is a solid entry-level DAC/amp that balances aesthetics, usability, and performance. It’s not a technical powerhouse, and audiophiles seeking absolute neutrality may find its sound signature lacking. However, for casual listeners and budding enthusiasts, it’s a fantastic starting point—especially if you value convenience and versatility. If you're looking for a clean desktop solution with balanced output and modern design, the K11 delivers. Just be aware of its quirks before diving in.