JadeAudio KA1 Headphone Amps Tiny Amplifier USB DAC High Resolution Lossless for Smartphones/PC/Laptop/Players(Lightning, Black)

By far one of the best sounding headphones DAC & AMP for this price. The sound quality is a huge improvement over the cheaper < $20 ones you can find all over the place. The audio is truly high quality and HiRes. Here are the pros: 1) HiRes is true, accurate, and sounds great. MQA also works as advertised 2) It's small and easy to handle and keep in my pocket 3) Despite my initial concerns, the braided cord to the phone USB-C jack is actually VERY sturdy and very well made. It has not untwisted on me even a tiny bit! Very impressive they were able to accomplish that 4) It works with just about any phone or computer 5) The jack is sturdy, the build quality is amazing, the all-metal casing makes it feel purposely made as well as you can Here's the poor things I found: 1) It does get warm, and especially so if placed in your pocket or under a blanket. It does have a good bit of heat that comes off of it. When playing higher sample rate tracks, such as 96kHz it will get much warmer 2) The app is practically useless and offers no added features Overall I am very impressed and would purchase again and again. Despite my few poor findings, I still rate this 5 stars for exceeding all my expectations. Also if you're worried about the braided cable: don't be. Mine has held up perfectly, see photos

Fantastic sound quality from this tiny dac. I bought this and the Fosi DS1 headphone DAC to compare. The Fosi is more than double the size and weight. This ka1 seems more portable. Sound quality is much better than the white Apple dongle. However, the sound quality, power, drive, sound stage, sparkle, pop, etc, is all superior on the much larger and more expensive Fosi for critical listening.

Every part of me wanted to write this off as a scam. You don't need a discrete dac for mobile listening, cheap Amazon adapters and my laptop's stock headphone jack are fine. Right? Wrong! I wish desperately that this was snake oil, but it's not. The listening experience is noticeably better, even just streaming Spotify at 320Kbps. I'd say this is a little overpriced for what it is, for 50 American dollars I want something a little more durable, but the sound quality is a stark improvement over your standard cheap USB-C to 3.5mm dongles. That being said, if you don't have decent headphones to pair with it, I wouldn't bother. My Meze 99s definitely sound way better through it, but it doesn't do much for apple wired earbuds. If you already have wired headphones you like, the KA1 is absolutely worth it... if you get it on sale. I'd pay $30-35, maybe wait for Prime Day. There are too many easy points of failure (not enough stress relief at each end of the cable, especially considering the weight of the DAC side), and it's not very compatible with women's jeans. If your pockets aren't deep enough to hold your whole phone, this'll be dangling out of your pocket, putting stress on the cable, and your phone's charging port. The cable to my headphones has better tension relief, but the design of the DAC renders it useless. Especially given how short the cable is, I'd like it to be a little beefier. Its current design looks fancy, but doesn't inspire confidence when it comes to longevity. Fiio, put this chip in a stiffer chassis and give it a replaceable cable. Killer audio processing, shame they cheaped out on the simple stuff.

As a musician, I often need to play recorded material into the mix. The easiest way to do that is by plugging the phone into one of the stereo channels on my mixer. Sadly, phones don't have 3.5mm audio jacks anymore, so like most people, I was using a cheap USB dongle. It worked. More, I cannot say. I finally got sick of the crappy sound and decided to find something that would be better. In the world of the audiofile, spending hundreds or even thousands of dollars is typical for a good audio interface. I wasn't prepared to do that for this application. Enter Fiio. I have used Fiio products in the past and they've always delivered great bang for the buck. The KA1 is no exception! The high end is far more distinct than the cheap dongles, and the sound stage is noticeably larger. Finally, the bass is very natural and well-defined without being boomy. The build quality seems very good. The cable looks to use good materials and the casing on the body is aluminum, not cheap plastic. While this device basically sits on my desk, it is very small and portable if you have a pair of wired headphones you want to use on the go. This will sound much better than what's built into your phone.

Great audio quality with one fatal flaw, the USB C cable is not built to last - and without being able to replace it it bricks the entire dac. I think this is good for beginners but anyone who uses this regularly is likely to encounter problems with integrity over time. Ultimately disappointed, but wow what a bang for buck when it worked.

I am beyond satisfied with this adapter! The volume level is great, much louder than most other adapters I've tried and the quality and clarity is noticeably better as well. This is everything I need out of an adapter as a lover of headphone listening and musician. And it's only 50 bucks, works great in my car too

January 2025 Update: It no longer works. This product has too many connectivity issues with my iPhone. It frequently requires me to unplug the device and try again. When it works the audio quality sounds fine, although I have nothing else to compare it to. I do appreciate the thick braiding of the cable because it feels more robust than what I see from other brands. This ensures that it can take some mild abuse if it gets yanked a bit. Perhaps my device alone has issues but for the $50 I paid I would expect not having to wonder if it’s going to work today.

Para el que quiera y busque calidad sonora sin mayores problemas, simplemente "enchufar y listo" a través del jack de toda la vida para auriculares, éste es su dispositivo. Fiio, calidad de primera línea, es una garantía. DAC muy compacto y ligero, ni se nota. Casi pesa más el conector de mis auriculares. Para los que no saben muy bien de qué va el tema: cualquier reproducción desde un medio digital como es el caso, necesita para escucharse a través de auriculares pasar primero por un DAC para convertir esos 1 y 0 a una señal eléctrica "analógica", y aquí empieza la realidad sonora. Este DAC es la manera más simple y directa de avanzar muchos enteros en este punto, y de aquí para arriba y sin parar (hay de todo y todo de más caro a mucho más caro). Así que es un excelente punto de partida. Económico, sencillo (no hay que hacer nada), y calidad. Es económico para lo que ofrece. Simplemente buscaba poder añadir auriculares (NO BLUETOOH, primer paso importante para obtener calidad real a costa de la comodidad, eso sí) a mi teléfono, en mi caso S23 Ultra que funciona perfecto, simplemente enchufar y listo, a través de Poweramp (aplicación casi obligatoria en el terreno que hablamos, hay más ...). Para mayores "avances" ya tengo un DAP de la propia Fiio, pero ésto ya son palabras mayores, y se trata de añadir salida por cable a un dispositivo sólo USB C evitando llevar dos reproductores (trae un adaptador a USB A para poder enchufar al PC p.ej.) . En el caso de los móviles más sencillos con salida por cable, es la solución ideal, ya que ni por asomo van a traer un DAC integrado de este nivel, y ahi será donde mayor aportación tendrá; pero...... los auriculares son esenciales. La música que escucho es en FLAC, aunque por espacio a veces en MP3 a alta tasa de bits. Reproduce sin ningún problema cualquier tipo de archivo. Aún no he probado DSD, pero imagino en la misma línea ¿Se aprecian cambios desde Bluetooh al cable con un DAC? Desde luego; aunque entra en juego disponer de auriculares a la altura, donde existen modelos excelentes a precios asequibles como KZ. El volumen que se obtiene es adecuado sin meternos en auriculares complicados, que no es el caso; para eso hay otros DAC. Yo escucho perfectamente la música a volumen más que correcto, y está en el 11% sobre 100%; se calienta ligeramente (es metálico y ayuda a disipar el calor, nada preocupante), y consume de la batería del móvil (así no hay más complicaciones con baterías externas, etc. (hay adaptadores que permiten en el USB C estar cargando y a la vez tener conectado el DAC o cualquier otra cosa. NOTA: DACs de mayores prestaciones y alimentados por el propio móvil, consumen bastante más, ojo a este punto. Muy poco consumo en el caso de este DAC. Reune las tres "B", Bueno (sin duda), Bonito (a gustos...), y Barato (para lo que ofrece). Absolutamente recomendable.

Si tienes un iphone y quieres oir música de calidad decente con auriculares decentes, tienes que hacerte con un dac como éste. Viene con un adaptador usb a, yo le he añadido un adaptador usb a a usb c (en amazon hay baratos y buenos) y también me sirve para el ipad, que tiene usb. El resultado es poder escuchar la música en hi res (si tienes una fuente, yo tengo qobuz) y aunque la escuches en calidad cd, la mejora, respecto al dac de apple, es notable

Fyller alla funktioner som jag förväntat mig, väldigt liten och kompakt, lyfter mina Sennheiser hörlurar bra.

Je n'ai rien à reprocher à ce matériel qui était passé dans "Test-Achats" de ce mois. Je me suis fié à leur essais et j'ai directement commandé sur Amazon. En 48h j'étais déjà à l'écoute! j'en suis ravi !

The dt 770 is hard to drive even at 80 ohms because its sensitivity is 96 dB, nonetheless the fiio ka1 delivered enough power to drive them with a good clarity and clean sound. And I believe you can use it with a 150 ohm headphones but you need to check the sensitivity too, if it's around 105 dB I guarantee you it does the job. But only buy it when the price drop, ideally around 45$ to 60$. I forgot to mention that I used it with my PC it works perfectly just plug and play.