--- product_id: 661777089 title: "FIIO K11 Compact Desktop R2R architecture DAC and Headphone Amplifier (Black)" brand: "fiio" price: "1281.91 DT" currency: TND in_stock: true reviews_count: 5 category: "Fii O" url: https://www.desertcart.tn/products/661777089-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier store_origin: TN region: Tunisia --- # 1300mW Dual Headphone Amp Output NOS/OS Dual Sound Modes 24-bit Fully-Differential R2R DAC FIIO K11 Compact Desktop R2R architecture DAC and Headphone Amplifier (Black) **Brand:** fiio **Price:** 1281.91 DT **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?** 1281.91 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/661777089-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 pure, immersive sound thanks to a multi-channel low-noise power design with 17 precision regulators. - • **Versatile Dual Outputs:** Seamlessly connect both balanced 4.4mm and single-ended 6.35mm headphones for ultimate flexibility. - • **Precision 24-Bit R2R DAC:** Experience ultra-clean, distortion-free audio with 192 ultra-thin film resistors delivering pristine sound clarity. - • **Powerful Headphone Amplifier:** Drive demanding headphones with 1300mW per channel and three gain levels for perfect pairing every time. - • **Dual Operating Modes (NOS/OS):** Switch effortlessly between warm, vinyl-like NOS mode and detailed, crystal-clear OS mode to match your mood. ## Overview The FiiO K11 Compact Desktop DAC and Headphone Amplifier features a self-developed fully differential 24-bit R2R resistor array for ultra-precise audio conversion. It supports high-resolution PCM up to 32-bit/384kHz and DSD256 decoding, with dual NOS/OS modes offering distinct sound signatures. Equipped with a powerful 1300mW per channel amp section and dual headphone outputs (balanced 4.4mm and single-ended 6.35mm), it drives a wide range of headphones effortlessly. Its professionally designed low-noise power supply ensures clean, distortion-free sound, making it a top-tier choice for audiophiles and professionals seeking premium desktop audio performance at an exceptional value. ## 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: 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 desertcart. 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 desertcart 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 desertcart. I am not in any way affiliated with any product mentioned here. This is my honest review and my personal opinion. Review: I use this on my computer for a near-field scenario. It replaced a Topping L30 and E30. The amp is unchanged. I knew I wanted an R2R ladder dac, but most of the options were > AUD 1000. I made the right choice, and now I have sound-stage and placement in abundance and an accuracy to the sound that reveals yet more of the music I have in my collection. ## 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 | #22,701 in Electronics ( See Top 100 in Electronics ) #25 in Headphone Amps | | Brand Name | FiiO | | Customer Reviews | 4.4 4.4 out of 5 stars (300) | | Global Trade Identification Number | 06953175710721 | | Interface | 4.4mm_balanced, 6.35mm_single-ended | | Manufacturer | FiiO | | Material Type | Aluminum Alloy | | Maximum Supply Voltage | 12 Volts | | Minimum Supply Voltage | 12 Volts | | Model | K11 | | Mounting Type | Cable Mount | | Number of Channels | 4 | | Number of Pins | 8 | | Part Number | K11 | | Smart Home Compatibility | Not Smart Home Compatible | ## Product Details - **Brand:** FiiO - **Maximum supply voltage:** 12 Volts - **Minimum supply voltage:** 12 Volts - **Mounting type:** Cable Mount - **Number of pins:** 8 ## Images ![FIIO K11 Compact Desktop R2R architecture DAC and Headphone Amplifier (Black) - Image 1](https://m.media-amazon.com/images/I/41FJXDbJ--L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***N on 5 February 2025* 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. ### ⭐⭐⭐⭐⭐ Review *by A***R on 2 November 2024* I use this on my computer for a near-field scenario. It replaced a Topping L30 and E30. The amp is unchanged. I knew I wanted an R2R ladder dac, but most of the options were > AUD 1000. I made the right choice, and now I have sound-stage and placement in abundance and an accuracy to the sound that reveals yet more of the music I have in my collection. ### ⭐⭐⭐⭐⭐ Review *by M***S on 3 March 2025* Works great, excellent value for the buck. Highly recomended ## 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(Black) - 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 - Youkamoo 4.4mm Cable Compatible for Hifiman HE4XX, HE-400i Headphones 8 Core Braided Silver Plated Replacement Audio Upgrade Cable (4.4mm to Dual 3.5mm Male Version) --- ## 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.tn/products/661777089-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier](https://www.desertcart.tn/products/661777089-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-26*