I’m pretty sold on this. I’ve tried a few different DACs over the years and had a topping e30 before this one. Which itself is a very nice sound dac, quite clinical but detailed with a good thump to the bass.I’m still not wholly convinced dacs sounded hugely different to each other, that being said, you can quite easily hear a bad one. And this fiio isn’t that.I’ve got it paired with a musical fidelity a1 and Lintons so my whole system is pretty rolled off and “warm”; the fiio fits right in. I’ve been playing music for hours, and doing a lot more streaming than I’ve ever done before, I’ve not put a record on in a few days now. It’s smooth and has enough detail, but really, it’s just musical. I think a great sign of a decent system is when you just find yourself and others, tapping your feet, and I do this a lot when using the k11. I was curious to see if there were a difference between chip and resistor based dacs and I think there is. I don’t think it’s “night and day”, but I don’t see anyone saying they don’t find this dac to be enjoyable.Not tried with headphones yet as have been using exclusively in line out with my 2 channel setup. But I’ll give it a go at some point.Right now, I’m just enjoying putting music on and sitting there with a glass of wine.Build quality is good, I like the knurled dial, feels solid.Only complaint I have is that I had issues pairing with the wiim pro as the fiio doesn’t seem to like playing at 192/24 with a coaxial cable. I tried few different ones and some were better than others, but all gave me brief dropouts. Playing at any other bitrate or using a toslink was trouble free, so that’s what I’m using. I don’t think it’s a fault of the k11 specifically, but perhaps something to do with r2r dacs in general.

Excelente unidad K11 R2R, su sonido es muy organico, muy retro, en particular el modo de operacion NOS (musica instrumental, solistas, etc.), cuando desees un soniddo mas moderno el modo OS (EBM, metal, electronica) es el adecuado. Lo he usado solo y en conjunto del amplificador Topping A50III, con audifonos Philips SH9500. Su sonido te engancha, es facil escucharlo por mucho tiempo y preferirlo aun cuando no es el DAC mas exacto y hay DACs tecnicamente superiores en su categoria de precio. Este DAC es especialmente bueno para señales tipo PCM y aunque reproduce muy bien todas las frecuencias destaca en el enfasis que hace de los medios por lo que resalta las voces, la musica relajada, musica instrumental, musica con contrastes dinamicos y silencios. Este DAC por su natureleza perdona menos las malas grabaciones, no las adorna y se escucharan verdaderamente deficientes pero en contraste te enganchara la musica bien grabada.Algunos compradores reportan problemas con la entrada optica. En mi caso el volumen era muy bajo en esa entrada. Despues de actualizar el firmware a la version M69 ya no tuve problemas.

I read about R2R DACs online and felt right away that this is a revolutionary breakthrough by FIIO and their engineers in delivering a DAC this good at this price point. Anything close to this DAC will cost about $ 1,000 or more. I know what a good DAC sounds like since I own two Denon DSD DACs. Wait, the balanced headphone out is an added bonus since its drives my Hifiman Sundara closed back headphones without even breaking a sweat. Wow !I almost fell off my chair when I listened to the first song on this R2R DAC. It was Diana Krall's Temptation using my Hifiman Sundara closed back headphone bought right here on Amazon. Muddy Waters Album sounds amazing. I kid you not. This DAC is equipped with a 4.4 mm balanced headphone out which drives the Sundara Closed back without breaking a sweat using the balanced headphone output. Obviously you need a balanced 4.4mm cable of which I bought right here at Amazon at a reasonable price.First a few initial house keeping setup chores must be performed prior to using this DAC. I feel that its mandatory to have the initial setup correctly to enjoy this Treasure. Read the instruction manual first, its easy to understand. This is how I set up mine, Gain set to high. Output, switch Output PO: Front Panel headphone out with adjustable volume, SAM or sampling used is NOS, you can also select OS for oversampling for a different sound signature. The NOS gives you a Vinyl sounding unadulterated sound signature. UAC usb working mode for my Mac mini 2024 is UAC 2.0. I honestly don’t use Windows computers but I suspect that it should work fine for Windows.With my Denon DSD DAC I have two separate Headphone AMPs, A Preamp for connecting the two separate headphone AMPS and had to add an EQ to achieve the sound signature that I preferred.Imagine, with the FIIO R2R DAC you just need the DAC only and the biggest bonus is that it has balanced and unbalanced Headphone out both of which which drives the Hifiman headphones without breaking a sweat ! This R2R DAC by FIIO is a game changer. All you need is the DAC with ZERO addons and you are good to go. Don’t be fooled by an Audiophile, you can get Hifi at an unbelievable price in a DAC which punches way above it’s price point. All of this for an insane price of $ 200 Canadian Dollars. Mind you, for very high impedance headphones you will definitely need a separate headphone AMP. Most Audio Enthusiasts don’t usually use very high impedance headphone and this R2R DAC will meet the needs of ninety nine percent of Audio Enthusiasts.Now comes the sound. I am an Audio Enthusiast and prefer not to use the term Audiophile since there is no authorized designation or qualification to address oneself as an Audiophile. I use FLAC or High Res music with Audirvana Music Player and Hifiman Sundara, and a few other really good headphones. I am not loyal to any particular band, I choose headphones which correspond to my preferred sound signature.To my ears, this R2R DAC delivers a warm sound with PERFECT lows, mids and highs with a decent soundstage and excellent instrument separation in the NOS mode. The experience can be described as relaxing. Wait, you don’t have to purchase a Tube AMP. This amp sounds tube like in the NOS mode. If you prefer a different sound signature you can always choose the OS mode and it will still knock your socks off.This DAC is highly recommended and is definitely a Giant Killer. Get yours from Amazon. I am not in any way affiliated with any product mentioned here. This is my honest review and my personal opinion.

Would definitely recommend it as an desktop audio addition.Pros:- Works perfectly with the 250-Ohm dt-990 pro- Sound quality, it's most personal preference but for me it's a huge improvement to the last USB audio dongle I had- Customization options very nice- led light, nice visual, bright and vibrantCons:- the turning OFF for me is a bit clunky (every time I have to turn it off I move the whole setup as it requires a push and hold for aa few seconds and the knob is very stiff)- small hint for gamers, a lot of games do not even support the above 48k sample rates, so if you turn it up for some music listening, and do not hear sounds in game after, this is the issue, revert it to 48k

Fonctionne out of the box, permet d'atteindre les 192khz sur Apple Music, contrôle très simple. Bien assez puissant pour la plus part des casques hifi (dans mon cas, un hifiman edition XS)

El Fiio K11 funciona perfectamente en modo usb, pero si lo piensas utilizar para conectar tu tv con audio óptico, mejor evítate de problemas y no lo compres. Tiene una falla desde que salió que hace que cada determinados segundos (aveces cada 10 seg, aveces 30, etc) se bajé el volumen por un segundo y enseguida vuelve al volumen normal. Esto se vuelve muy molesto porque es algo muy recurrente.Fiio ya está enterado de esta situación, pero no ha hecho nada para resolver este problema desde que el equipo salió, por lo que creo que es una falla de hardware y no algo que pueda resolver por una actualización. Por mi parte, este era mi primer equipo fiio, y ahora me llevo una mala impresión de la marca y su servicio postventa. No vuelvo a comprar nada de la marca.

Este DAC/AMP aporta una nitidez muy buena y una amplificación correcta por salida balanceada, la unica pega sería la Single End que no tiene ni la mitad de potencia que la balanceada, pero bueno también se agradece que no sea tan potente para poder utilizarlo con IEMS,Calidad de sonido: 9Calidad de materiales: 9Potencia Balanceada: 9Potencia SE: 7Ruido de piso: 10Calificaciones relativas a su precio.Probado con Audio Technica MSR7BM50XKZ ZSXHIFIMAN HE400SEHIFIMAN ANANDA V3

Es un increíble Amp/DAC bastante compacto y de buena calidad, mueve todo tipo de audífonos y tiene un sonido bastante agradable y natural, también lo he probado con IEMs muy sensibles y nada de ruidos, muy recomendado.

Excelente

Bought this on the back of Youtube reviews. Was looking for a handy DAC/AMP at a friendly budget and this has been superb. I play my FPS games on the mid setting at 60/99 volume and it's perfect. Plenty room to have this louder.I pair this with DT900 Pro X and some IEM'