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

I wanted to get into higher end audio, namely by finding a desktop DAC with balanced audio output. For under $150, this was an incredibly sensible purchase for my needs. Unit itself is made of solid material, sleek black finish that isn't a total fingerprint magnet, with full size audio out as well as the aforementioned 4.4mm balanced out. My headphones ROAR out of that balanced out, even on low amplification! Love the aesthetics from the LED lighting on top, which I didn't even realize was a feature when I plugged it in! Pairs great with a room and setup full of RGB. If you want to get into upper mid to higher end audio, this is a fantastic starting point that'll run out of any desktop or laptop, or even game console with no drivers needed! Drivers are necessary for ASIO out on desktops though, which can be tricky to install. Overall though, great value and sound, these make your headphones even better.

The FiiO K11 punches way above its price and size. It delivers a clean, powerful sound with enough headroom to drive most headphones comfortably, especially through the balanced output. The tuning is neutral and detailed without being harsh, making it a great match for both planars and dynamics. Build quality feels solid and premium. The volume knob is smooth, the screen is bright, and the menu is simple to navigate. It stays cool during long sessions and doesn’t clutter the desk. USB connectivity is stable, and switching between inputs is quick. For everyday listening, gaming, or music production, the K11 offers excellent clarity and separation. You get high‑resolution support up to 384kHz/24‑bit and DSD256, which is more than enough for most libraries. If you want a compact desktop DAC/amp that delivers clean power, great usability, and impressive sound for the money, the K11 is an easy recommendation.

The FIIO K11 DAC & Amplifier is worth every penny. I use it paired with Beyerdynamic DT 990 PRO (250 Ohm) headphones and the TIDAL music streaming service. I have the K11's gain set to "high" to accommodate the impedance of the headphones and almost never need the volume above 40/100. The unit has six different digital filters. I use filter #4: Slow Roll-Off, Phase-Compensated which is indicated as appropriate for classical music. My feeling is, if it's good for classical music, it's good for any genre. The FIIO K11 sounds fantastic and works seamlessly with the Wavelet EQ app (Android). Highly recommended!

The Fiio K11 has been a phenomenal addition to my computer setup. I was looking for a way to improve the sound quality for all my audio devices, and this DAC/amp has truly exceeded my expectations. ​This device isn't just for one type of gear; it enhances the audio for everything I own. My headphones, headsets, IEMs, and even my desktop speakers all sound noticeably better. The K11 brings out more clarity, detail, and power, making every listening experience more enjoyable. ​It's a fantastic value for anyone who cares about sound quality. If you're looking to take your audio setup to the next level and are wondering where to start, the Fiio K11 is an absolute must-have. It's a simple and effective upgrade that makes a huge difference.

Definitely a nice little amp and love the fact that it has the balanced output. I'll keep it simple since I'm not into all the silly audiophile terminology. After watching a few videos I decided to pick this up it was pretty happy with it. I've had a few other amps previously and I have to say this one has some seriously heavy filtering. Never before have I been able to switch filters and hear such a difference between the sound. This one goes from Bright and sharp a filter number one to completely dark and muffled at filter number five. Filter six is basically bypass and it's where I kept mine at. It's a really good sound really nice vocals good Sound Stage and really overall a great value. I think the interface is really cool and the form factor is really nice the knob feels great the display looks cool, however the LEDs on top make me feel like it was geared towards gamers especially at that price point. Moving on to a couple comparisons. Versus the smsl c200 it's pretty close but I have to give the win to the smsl but it's nearly $70 more. The smsl just sounds a little more detailed you hear a lot more Reverb and symbols and acoustic guitar strums it's just more clear. Also the biggest thing is the Sound Stage is much bigger in the smsl. You feel much more like your standing in the center for performance and things feel a little bit wider around your head and a little more holographic. Comparing it to the topping dx3 Pro+ it's just a different game totally. The topping is much Superior than all the others. It's punchier it's much much more clear and you're hearing details that just disappear on the k11. The soundstage is bigger and distant reverbs on vocals or snare drums just feel like they're floating around the air in your head. It's really cool amp unfortunately it didn't have a balanced input so I couldn't do a direct comparison. Comparing them all through the quarter inch plug the topping blew everything out of the water however comparing the topping with the quarter inch versus fiio and smsl balanced, the topping was dead last. I don't know if my sundara's shipped with a poor cable but for $17 here on Amazon I bought a balanced cable that really changed the entire sound making it much more clear in detail. Anyway that's what I noticed. Either way I didn't end up keeping the fiio k11 just because I found a better option at a higher price that I just couldn't give up after hearing it. I think anybody would be very very happy to have this amp as was I before I made the mistake of listening to more expensive units :)

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 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!

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.

My Wiim Ultra had an iffy headphone output so I bypassed it with this puppy, using the USB port. My modest headphones sound better than ever! I am very happy with this unit as it also has optical and coax inputs, if needed. It has 3 settings for various types of headphones. The default "medium" setting works great with my headphones so I left it. But it can also work with headphones that need more juice, I guess. Anyway, I am a happy guy!

Ich habe lange nach "dem richtigen" DAC "für mich" recherchiert (mein erster). Der Markt ist sehr unübersichtlich und wenn man, wie ich, gerade erst das Feld "Audio/Hifi" (wieder) betreten hat kann es wirklich überwältigend sein. Ich habe jahrzehntelang über meinen Marantz SR4002 mit AKG K500 Kopfhörern Musik gehört und war auch sehr zufrieden. Die AKG's sind nun im halben Ruhestand und wurden von DT770 Pro X von Beyerdynamic abgelöst. Da das Meiste seit Langem sowieso über den PC läuft und ich etwas kompakter werden wollte habe ich mich auf die Suche nach einem DAC/Amp gemacht. Geworden ist es der K11 von Fiio. Das Gerät kam gut und schön verpackt bei mir an. Alles was man benötigt ist dabei. Das Gerät, Netzteil, USB-C Kabel sowie ein 3,5mm zu 6,3mm Adapter. Mein Gerät hatte bereits die neueste Firmware Version installiert (Stand 5.8.24 V122). Die Bedienung geht leicht von der Hand und zu Einstellungen welche sich nicht sofort erklären findet man im Forum des Herstellers sowie auf Reddit fundierte und verständliche Antworten. >>>Wichtig<<<: Das Gerät bietet die Möglichkeit verschiedene Filter einzustellen (sechs an der Zahl). Im Auslieferungszustand ist Filter Nummer 3 voreingestellt. Diesen sollte man umgehend auf Filter 2 oder 6 (entspricht keinem Filter) umstellen. Viele Reviews weisen darauf hin und ich auch. Mit dem voreingestellten Filter ist der Sound "muffig" und nicht "offen/frei" und auch ich als nicht Audiophiler merke den Unterschied deutlich. Ich persönlich nutze Filter Nummer 6. Die Leistung (Gain) kann in drei Stufen (L, M, H) an die jeweiligen Kopfhörer und ihren Bedarf angepasst werden. Ich betreibe meine Beyerdynamic DT770 Pro X (48 Ohm) auf der mittleren Stufe. Auch die erste Stufe wäre möglich, aber ich habe gerne Reserven nach oben wenn die Aufnahme nicht so laut ist. Der Klang ist klar und sauber und wird nicht "verfärbt". Auch bei hohen Pegeln. Nichts was mich stören würde. Kein Knarzen, kein Überschlagen, nichts. Einfach guter Klang bis (wenn man möchte) zur Schmerzgrenze. Die Lautstärkeregelung erfolgt nicht linear über den gesamten Bereich des Lautstärkereglers sondern steigert sich erst langsam um dann bei ca. 75% die restliche Lautstärke schneller zu erhöhen. Ich habe mich schnell daran gewöhnt. Jedem der einen fähigen DAC sucht und sich auch (wie ich als Laie) in den Kaninchenbau begeben hat kann ich den K11 wärmstens empfehlen. Es mag "bessere(!?) " und technisch raffiniertere Geräte geben, aber ich bin nach all den Wochen des Lesens und Schauens "angekommen", und das zu einem guten Preis. Das Gerät tut was es soll, nämlich genug Leistung mitbringen und den Klang von der Quelle möglichst unverfälscht zu mir bringen! @Fiio well done