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

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.

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.

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.

This product has been a disaster. Don’t get me wrong: the sound quality is outstanding, but the reliability is nonexistent. I have had FOUR of them, from Amazon and other retailers, and all have had faults. The first two had a nasty overheating problem, and I mean seriously hot —too hot to touch, and then they would simply cut out. The third had problems with the 3.5mm socket, which didn’t make proper contact with the plug on the headphone cable, resulting in constant dropouts and static. The fourth one has now simply stopped working. The led illuminates, but none of my devices (iPhone 15, Samsung S25, iPad mini, HP Envy, MacBook Air M2) will recognise the dongle. It doesn’t even merit the single star this review requires. Don’t waste your money. Avoid the Fiio KA11

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.

Incredible for the money, a good USB DAC, and IEM headphones are the way forward.

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.

This DAC has breathed new life into my earphones. The loudness is great--sound quality is wonderous and it is as simple as plug and play.

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 👍.

Merhaba, ben Kolombiyalıyım ve bu ürün mükemmeldi.

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

Gerçek bir efsane biraz fazla ısınıyor minik lastik halkalar taktım iyi oldu.

Sheeezzzz!!!! I am now going back to wire headphones 😁… sounds louder & better! clearer vocals! and mid-range are top caliber. Thanks to this bloody gem! This is a must to all Headphones! Gen. X’s let’s volt in! So easy to set-up, just bloody connect to any latest mobile phone devices and that’s it. I’m using my Sony’s WH-1000XM6 Headphone + connected to my iPhone16 Pro Max. Just a reminder, you can’t use or connect to Sony’s Sound Connect app when using your FiiO KA11 USB dongle. But I think you don’t need tweaks for EQ to get a better sounds. The sounds coming out are great. I am so thrilled & overjoyed having this! Best Buy indeed.