--- product_id: 645973616 title: "FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black)" brand: "fiio" price: "€ 234.55" currency: EUR in_stock: true reviews_count: 13 category: "Fii O" url: https://www.desertcart.ie/products/645973616-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier store_origin: IE region: Ireland --- # 1300mW powerful amp output Dual NOS/OS sound modes 24-bit R2R DAC precision FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) **Brand:** fiio **Price:** € 234.55 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your desktop audio game with FiiO K11 R2R — where precision meets power. ## Quick Answers - **What is this?** FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) by fiio - **How much does it cost?** € 234.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/645973616-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier) ## Best For - fiio enthusiasts ## Why This Product - Trusted fiio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Low-Noise Power Supply:** Enjoy clean, distortion-free sound thanks to a multi-channel low-noise power design with precision regulators. - • **Versatile Dual Outputs:** Seamlessly connect both balanced 4.4mm and single-ended 6.35mm headphones for ultimate flexibility. - • **Switchable NOS/OS Modes:** Tailor your sound with dual operating modes—choose warm, musical NOS or detailed, crisp OS for every mood. - • **Powerhouse Amplification:** Drive demanding headphones effortlessly with 1300mW output and three-level gain for perfect pairing. - • **Precision Engineered R2R DAC:** Experience ultra-accurate 24-bit fully differential resistor array delivering pristine, noise-free audio clarity. ## Overview The FiiO K11 Compact Desktop DAC/Headphone Amplifier features a self-developed fully differential 24-bit R2R resistor array for ultra-precise sound reproduction. It offers dual NOS/OS modes to customize audio character, a powerful 1300mW amplifier with adjustable gain, and dual headphone outputs (6.35mm single-ended and 4.4mm balanced). Its low-noise power supply ensures clean, high-resolution audio playback up to 32-bit/384kHz PCM and DSD256, making it a versatile and reliable choice for audiophiles and professionals seeking rich, detailed desktop sound. ## Description FiiO has released a new R2R variant for its highly acclaimed K11 desktop DAC/AMP. With a self-developed fully differential 24-Bit R2R Resistor Array, the K11 R2R brings a smooth and rich sound to its listeners. The K11 R2R has NOS/OS dual operating modes, each having its own sound characteristics. The DAC/AMP houses dual headphone output options, one 6.35mm single-ended and another 4.4mm balanced port. Equipped with a powerful amp section with three-level adjustable gain and high-quality emerald solid-state capacitors, the K11 R2R delivers a strong output of 1300mW per channel. Experience a rich, smooth, organic R2R sound with the FiiO K11 R2R. Review: Great value, excellent quality (for the price), sonically proficient - Had been using an SMSL Sanskrit II for over 2 years with my Edifier active speakers. Switched only because I wanted to use my 7hz timeless IEMs as well on my desk. First of all build is good (ie not high end) and excellent for the price. The functions are good and volume knob has a nice clicky feel to it (again not high end but good). Sound wise using my speakers, I've noticed more clarity, preciseness and crispness to the sound compared to the SMSL. In comparison, the SMSL is more laid back and full. I'm good with either so for me it's just different and happy with it. For the IEMs, I can only compare to my FIIO BTR15 connected by wire to my PC. I feel like they are quite similar and hear no discernable difference with the music. Additionally I tried the r2r version of this and could not hear and discernable difference either. Your mileage will vary based on your other gear of course. Music I used to listen to was all kinds of genre (rock, jazz, edm, classical) BUT everything was played through my pc. All files were flac at 16bit or better using windows 11 native music player (which of course may not be the best🙄). I would definitely recommended this as a good affordable starter DAC and amp. Review: Another Great DAC/AMP at the Mid-Fi Pricepoint - To be honest with you, I can't really tell a difference between a lot of these DAC/AMPs unless you compare them to super low-end stuff. What I can say, however, is that the FiiO K11 is able to drive my HD 660S2s with ease, and they sound fantastic through the K11, but they also sound fantastic through a lot of other Mid-Fi DAC/AMP options. I mainly chose this one because I liked how it looked. The menu is a little finicky to work, but you'll get used to it. The entire thing is controlled by a single push-knob. Overall, you can't really go too wrong at this price point, and there's a lot of options. The K11 fits very nicely in this budget, and will perform as advertised with great reliability and ample sound quality/ volume. Note: Coming from an SMSL C200 with a Balanced Out jack that broke within months of ownership, and SMSL refused to replace it unless I shipped it at personal cost to China. AVOID SMSL! ## Features - Fully-Differential 24-Bit R2R DAC Array - FiiO has featured its newly developed four-channel fully differential 24-bit R2R resistor array on the K11 R2R. It consists of 48 resistors per channel, a total of 192 high-precision ultra-thin film resistors with 0.1% accuracy and low-temperature drift between the four channels. It promises clean and crisp output with dark background thanks to the specially developed audio circuit architecture. - NOS/OS Dual Operating Modes - FiiO K11 R2R has NOS(Non-Oversampling) and OS(Oversampling) dual operating modes. These are freely switchable and offer dual sound characteristics with the device. The NOS mode maintains the original sampling rate while signal processing while the OS mode oversamples all the signals to 384kHz for processing. NOS mode results in more musical presentation while the OS mode delivers more details and clarity. - Powerful Amp Section - FiiO has equipped the K11 R2R with professionally designed amp circuitry. It consists of Ti OPA1642 as Low-Pass filters and then dual SGM8262 Professional-grade operational amplifiers. The K11 R2R has an output power rating of up to 1300mWx2, which is adequate enough to drive demanding headphones with ease. It has three-level gain modes for easy pairing with sensitive as well as high-power requiring gear. The K11 R2R also adopts NJW1195A precise digital volume chipset for precise volume adjustment with low distortion between the channels. - Dual Headphone Output Ports - FiiO K11 R2R houses dual headphone output ports. It consists of a single-ended 6.35mm port and a balanced 4.4mm output port. You can easily pair different IEMs and headphones with the K11 R2R and enjoy high-resolution music to all its glory. - True High-Resolution Audio Signal Processing - FiiO K11 R2R supports decoding for high-resolution audio signals. It has full support for PCM and DSD signal processing supporting up to 32-bit/384kHz PCM and DSD256 audio signals. DSD256 requires the DSD output mode to be set to native. It is internally converted into PCM for R2R signal processing. - Professionally Designed Low-Noise Power Supply - FiiO K11 R2R features a professionally designed low-noise power supply. It consists of 17 Low-Noise LDO precision voltage regulator ICs and 2 DC-DCs providing a multi-channel power supply. It further benefits from the external 12V power supply ensuring a clean output with low noise and distortion issues. K11 R2R delivers quality sound for its users. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D9BB5RL1 | | Best Sellers Rank | 36 in Headphone Amplifiers | | Brand | FiiO | | Country Of Origin | China | | Customer Reviews | 4.5 out of 5 stars 564 Reviews | | Global Trade Identification Number | 06953175710721 | | Manufacturer | FiiO | | Manufacturer Part Number | K11 | | Material | Aluminum Alloy | | Maximum Supply Voltage | 12 Volts | | Maximum supply voltage | 12 Volts | | Minimum Supply Voltage | 12 Volts | | Minimum supply voltage | 12 Volts | | Model Number | K11 | | Mounting Type | Cable Mount | | Mounting type | Cable Mount | | Number of Channels | 4 | | Number of channels | 4 | | Product Warranty | 1 | ## Product Details - **Brand:** FiiO - **Maximum supply voltage:** 12 Volts (DC) - **Minimum supply voltage:** 12 Volts (DC) - **Mounting type:** Wall Mount - **Number of pins:** 13 ## Images ![FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) - Image 1](https://m.media-amazon.com/images/I/41FJXDbJ--L.jpg) ![FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) - Image 2](https://m.media-amazon.com/images/I/61WRN6EHcTL.jpg) ![FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) - Image 3](https://m.media-amazon.com/images/I/61fiy9r1erL.jpg) ![FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) - Image 4](https://m.media-amazon.com/images/I/61YbFB6QiGL.jpg) ![FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) - Image 5](https://m.media-amazon.com/images/I/61sgs-PDFNL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great value, excellent quality (for the price), sonically proficient *by F***R on 29 August 2025* Had been using an SMSL Sanskrit II for over 2 years with my Edifier active speakers. Switched only because I wanted to use my 7hz timeless IEMs as well on my desk. First of all build is good (ie not high end) and excellent for the price. The functions are good and volume knob has a nice clicky feel to it (again not high end but good). Sound wise using my speakers, I've noticed more clarity, preciseness and crispness to the sound compared to the SMSL. In comparison, the SMSL is more laid back and full. I'm good with either so for me it's just different and happy with it. For the IEMs, I can only compare to my FIIO BTR15 connected by wire to my PC. I feel like they are quite similar and hear no discernable difference with the music. Additionally I tried the r2r version of this and could not hear and discernable difference either. Your mileage will vary based on your other gear of course. Music I used to listen to was all kinds of genre (rock, jazz, edm, classical) BUT everything was played through my pc. All files were flac at 16bit or better using windows 11 native music player (which of course may not be the best🙄). I would definitely recommended this as a good affordable starter DAC and amp. ### ⭐⭐⭐⭐⭐ Another Great DAC/AMP at the Mid-Fi Pricepoint *by B***N on 8 December 2025* To be honest with you, I can't really tell a difference between a lot of these DAC/AMPs unless you compare them to super low-end stuff. What I can say, however, is that the FiiO K11 is able to drive my HD 660S2s with ease, and they sound fantastic through the K11, but they also sound fantastic through a lot of other Mid-Fi DAC/AMP options. I mainly chose this one because I liked how it looked. The menu is a little finicky to work, but you'll get used to it. The entire thing is controlled by a single push-knob. Overall, you can't really go too wrong at this price point, and there's a lot of options. The K11 fits very nicely in this budget, and will perform as advertised with great reliability and ample sound quality/ volume. Note: Coming from an SMSL C200 with a Balanced Out jack that broke within months of ownership, and SMSL refused to replace it unless I shipped it at personal cost to China. AVOID SMSL! ### ⭐⭐⭐⭐⭐ Sit back and relax *by R***R on 27 March 2025* 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 sounding dac, quite clinical but detailed with a good thump to the bass. I’m still not wholly convinced dacs sound 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 wouldn’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. ## Frequently Bought Together - FiiO K11 R2R DAC and Headphone Amplifier for Home Audio or PC, 6.35mm and Balanced 4.4mm, RCA, Coaxial, Optical, 1300mW, 384kHz/24Bit DSD256 (Silver) - HIFIMAN Edition XS Full-Size Over-Ear Open-Back Planar Magnetic Hi-Fi Headphones with Stealth Magnets Design, Adjustable Headband, Detachable Cable for Audiophiles, Home, Studio-Black - Qudelix-5K Bluetooth USB DAC AMP with LDAC, aptX Adaptive, aptX HD, AAC (Dual ES9219 3.5mm Unbalanced & 2.5mm Balanced Output) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ie/products/645973616-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier](https://www.desertcart.ie/products/645973616-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-06-01*