FiiO KA11 USB Dongle DAC and Amp (USB-C, Black)

After spending A LOT of time comparing different DAC's for my IEM's, I settled on the KA11 as it stood out above the rest. Definitely NOT disappointed. It sounds fantastic! Tested both on my PC and my Samsung smartphone, audio is crisp and clear, no distortion, and with a well-tuned EQ it really cannot be beaten. Excellent clarity and depth. I also find it doesn't have a dramatic effect on Smartphone battery life either, which was a concern, though I'm sure that will vary depending on which earbuds/headphones you use. The DAC does get a little warm after a little bit of use, but rest-assured that's totally normal. I will say however, this is a very powerful DAC. It is capable of driving larger headsets without an issue. With that being said, exercise caution if you are using sensitive IEM's (like me). I unfortunately accidentally blasted my ears briefly at 100% volume when I clicked an incorrect button on the PC FiiO app. Worth noting, even with very sensitive IEM's, the noise floor is incredibly low... I hear absolutely zero hiss or artifacts when no music is playing. Incredible. All in all, highly recommended. It blows a lot of the other DAC's at double the price-point out of the water.

This thing just blows my mind, it's just crazy how this thing can produce so much power, it makes any phone sound like a full DJ set up in your pocket ,I have mine connected to an old phone, when I'm sat in the garden or walking the dog, the sound is just Amazing, transform any phone with a USB C connection or purchase the USB to C adapter for penny's, it literally boost ,and turns any phone PC, or gadget literally into a high end HiFi system for not a lot off money, 10 out of 10.

This DAC and amp sounds amazing. The difference compared with many other DACs is night and day. It's actually better than a creative USB sound card I use mostly for 5.1 channel sound. Even when listening to regular Mp3, AAC Vorbis, Opus or other compressed files. I couldn't even turn on the UHQ upscaler with the Samsung DAC dongle but I can with this. But to be fair, I'm now not sure my Samsung DAC dongle was a genuine Samsung product. But I bought that from an Amazon seller as well... This DAC also does DSD. Up to DSD512 oversampling I believe. Cirrus DAC chips like the one this uses are now some of the best. They seem to be making chips as good as Wolfson before Cirrus purchased the company.

Absolutely ridiculous upgrade in sound. I say this after spending ~£5000 in audio equipment from Wharfedale, Denon, SVS, B&W. It does get a little bit hot. But I have no worries since FiiO is an known brand with a good reputation in the budget audiophile community. I'm absolutely certain thermal protection kicks in before temp reaches dangerous levels. 100% must-have for IEMs.

My original review below. Purchased in Dec 2025. They simply stopped working in July 2026. I did not use regularly or frequently or on the move, just at home from time to time. I contacted Fii0 support. I have no repose at all. It seems that these DAC dongles are not well made. My son bought the same KA11 dongle on my recommendation. His stopped working within a month. He works in London and uses his on the move and more frequently. Whilst these sound great to start, they are not worth buying as they break/ stop working and are not robust. There have been many others with similar experiences. My recommendation is to look for an alternative DAC dongle. My Initial OLD review: Fabulous bit of kit. Use with my old AKG headphones and Samsung S24+ phone. Improves depth/ warmth and volume. Very happy with purchase. A nice little very portable DAC for relatively low price. My son got one too and is also pleased with his which he uses with iPhone.

Excellent bit of kit. Improves the sound through my AKG K240 and Beyer Dynamic DT990s by a great deal vs cheap phone socket outputs and other devices. Of course there are better DACs out there - for more money -, but if you need something low cost and pocketably small, you won't go wrong with this.

EDITED REVIEW: After using this with my iPhone (review below) I decided to try it with three different DAPs. I ended up returning the KA11 as soon as I realised just how flaky this is. It either won't work at all, or it will only work with certain music players, or it will work and then disconnect and not reconnect... I've installed the Fiio app to see if that helps, but no. Yes, it works with my iPhone, but what if I decide to switch to Android when it's time for a change? And why shouldn't I be able to use it with my DAP as well? It seems like I am not the only person to have these problems. ORIGINAL REVIEW: I used this with an iPhone 15 Pro Max, and Letshuoer IEMs. Compared to the regular dongle I've been using the volume is increased, and the music sounds "fuller". Without the Fiio it's flat and lifeless (XTCs The Mayor Of Simpleton for instance) and it comes to life when the Fiio is substituted. That's not very scientific, I know, but it's accurate.

I initially bought the Jade Audio JA1 which is a cheaper version (by Fiio's sub-brand Jade) for using my DT770 Pro 32ohm cans with my phone. That drove them "ok" but i had to have volume close to max. Bought this Fiio KA11 instead as this has a much more powerful op amp inside. These now drive my headphones much harder and i can listen at good volume with still a good 30-40% left -- which means quieter stuff can be boosted Great build quality. Gets a little warm but that's pretty normal when pushing this much power so nothing to be alarmed about -- it's warm not hot. For the price -- great bit of kit

Le FiiO KA11 est un petit DAC très puissant avec un son propre et détaillé, même sur des IEM sensibles (testé avec les Sgor Adonis). Pour 35 € à l’achat, c’est un excellent rapport qualité-prix. Je le recommande sans hésiter à ceux qui cherchent un DAC compact et performant. Brancher sur ma PS4 pro avec casque HyperX Cloud Alpha fonctionne parfaitement 👍.

100% recomendado, la calidad de audio superó mis expectativas, la calidad de los materiales son excelentes, se calienta un poco pero en lo personal no me incomoda y tiene un amplificador potente.

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Excelente producto, DAC que evita restricciones de audio de las capas de personalización de Android y amplificador de excepcional calidad de Audio

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