---
product_id: 643226682
title: "FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black)"
brand: "fiio"
price: "VT79177"
currency: VUV
in_stock: true
reviews_count: 8
category: "Fii O"
url: https://www.desertcart.vu/products/643226682-fiio-k11-compact-desktop-r2r-architecture-dac-and-headphone-amplifier
store_origin: VU
region: Vanuatu
---

# 1300mW powerful headphone amp Dual NOS/OS sound modes 24-bit R2R DAC precision FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black)

**Brand:** fiio
**Price:** VT79177
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your desktop audio game with the 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?** VT79177 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/643226682-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

- • **Powerhouse Amplification:** Drive any headphones effortlessly with 1300mW output and three gain levels for perfect volume control and low distortion.
- • **Precision-Engineered R2R DAC:** Experience ultra-clean, organic sound with 192 ultra-thin film resistors delivering 0.1% accuracy and minimal distortion.
- • **Versatile Dual Headphone Outputs:** Seamlessly connect both balanced 4.4mm and single-ended 6.35mm headphones for ultimate listening flexibility.
- • **Tailor Your Sound with Dual Modes:** Switch instantly between NOS for warm, musical vibes and OS for crystal-clear, detailed audio clarity.
- • **Audiophile-Grade Low-Noise Power Supply:** Enjoy pristine sound purity thanks to 17 precision voltage regulators and an external 12V supply minimizing noise and interference.

## Overview

The FIIO K11 Compact Desktop R2R DAC and Headphone Amplifier combines a fully-differential 24-bit R2R resistor ladder DAC with dual NOS/OS modes, delivering both warm and detailed sound profiles. Its powerful 1300mW amp section supports demanding headphones with low distortion and precise volume control. Featuring dual headphone outputs (balanced 4.4mm and single-ended 6.35mm) and a professionally designed low-noise power supply, the K11 R2R offers audiophile-grade high-resolution audio playback up to 32-bit/384kHz PCM and DSD256. Compact, elegant, and priced competitively, it’s a top-tier choice for discerning listeners seeking premium desktop audio performance.

## Description

desertcart.com: FIIO K11 Compact Desktop R2R Architecture DAC and Headphone Amplifier (Black) : Electronics

Review: Huge Value in an R-2R DAC — and When to Use Oversampling vs NOS - I’ve been running the FiiO K11 R2R for a while now, and it’s an incredible way to step into ladder DACs without spending a fortune. Build quality is solid, the display is clear, and it’s truly plug-and-play. Unlike the standard K11, which uses a delta-sigma DAC chip, this version employs a true R-2R resistor ladder to convert digital to analog (No DAC chip). The R2R architecture gives music an organic, textured feel, and makes its OS/NOS switch worth exploring. Here’s how the two modes behave: •Oversampling (OS) is my default. It keeps rock, classical, and movie scores lively and punchy, with tight bass and precise imaging. •Non-Oversampling (NOS) softens edges and smooths the top end — great for older masters like Silver Springs from Fleetwood Mac, bright recordings, or late-night listening sessions. Switching is instant, so you can tailor playback to the recording. My listening chain is: Bluesound Node (coax out) → K11 R2R DAC → Denon AVR-X4500H (analog in) → Emotiva BasX amp → ELAC Debut 2.0 F5.2 towers + dual REL T/1003 10″ sealed subs. I run the AVR in Stereo mode while bypassing Audyssey EQ on the mains — this gives me the transparency of Pure Direct while keeping my subs engaged. Using the Audyssey MultEQ-X PC app, I let it measure the F5.2s’ natural roll-off and it automatically set their crossovers around 40 Hz. I also keep the AVR’s bass management set to LFE + Main, which blends the RELs smoothly with the towers instead of letting the subs “bloom” separately. The result is bass that feels integrated rather than overblown. Price-wise, the K11 R2R is unbeatable. Many R-2R DACs run for about $1,000 or more, but this one is roughly $175. The high-end models may squeeze out another 30–50 % of refinement, yet they’re not 5–6× better — for most setups, that premium price tag just isn’t justified. If you’re curious about R-2R sound and want a DAC that punches way above its price, the K11 R2R is an easy recommendation. In addition, this DAC has made my Sennheiser HD650XX headphones come alive for the first time ever! This DAC is a no-brainer upgrade IMHO, however, based on the reviews you may want to buy the additional extended warranty as this product only comes with a one year warranty. Thank you for reading this and I hope it was helpful!!
Review: Sweet and Smooth like the Moon. - This is my first real audiophile grade DAC and on day 1, I remember hearing the K11 R2R for the first time. The difference a dedicated DAC makes versus my phone DAC Dongles or previously, my Astro A40TR DAC I used for music & gaming was completely a night and day difference. I heard no static, no hiss, simply organic lossless music for the first time ever. It was beautiful like moon on a clear night sky. It was fun going through all my genres of music and favorite songs, like I was listening to them all over again for the first time. I have the DAC Set to 24-Bit 48.1Khz / DSD: 1-Bit (Which can only be achieved on the latest firmware that you have to manually install yourself.) Everything feels smooth, with a touch of warmness and clarity. Currently listening these IEM's: The AFUL Performer 5+2 & SIMGOT Supermix 4 / while using Low Gain Mode at ~45-55% Volume which is my personal sweet spot for listening on these IEMs. CONS: -My only cons with this is turning off the DAC requires you to hold the control knob down for (5) Seconds every time you want to power it off. It's not a big deal, but something to note. -No onboard EQ Functions. Not a deal breaker (software adjustments are just fine). Other FiiO Models like the K13 R2R have those more premium settings, but would have been nice to have at least on the R2R Version of the K11. -Stock Rubber Feet aren't very strong. DAC slides around a lot when pressing the 1-Button Knob. You have to order replacement rubber feet. THE VERDICT: In conclusion, for the price, you get a very nice small and compact Desktop DAC that looks elegant and from what I've heard competes with some much higher end DACs / R2R's at a fraction of the price. This is the budget king of DACs.

## 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 |
| Audio Jack | 6.35 mm Jack |
| Best Sellers Rank | #15,360 in Electronics ( See Top 100 in Electronics ) #26 in Headphone Amps |
| Brand | FiiO |
| Color | Black |
| Connectivity technologies | Wired |
| Customer Reviews | 4.4 4.4 out of 5 stars (264) |
| Date First Available | July 12, 2024 |
| Global Trade Identification Number | 06953175710721 |
| Interface Type | Coaxial |
| Item Weight | 2.13 pounds |
| Item model number | K11 |
| Manufacturer | FiiO |
| Material | Aluminum Alloy |
| Maximum Supply Voltage | 12 Volts |
| Minimum Supply Voltage | 12 Volts |
| Mounting Type | Cable Mount |
| Number of Channels | 4 |
| Number of Pins | 3 |
| Other display features | BISS Basic |
| Package Dimensions | 9.65 x 7.76 x 2.44 inches |
| Special features | Desktop |
| Whats in the box | USB Type C to USB Type A |

## Product Details

- **Brand:** FiiO
- **Maximum Supply Voltage:** 12 Volts
- **Minimum Supply Voltage:** 12 Volts
- **Mounting Type:** Cable Mount
- **Number of Pins:** 3

## 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

### ⭐⭐⭐⭐⭐ Huge Value in an R-2R DAC — and When to Use Oversampling vs NOS
*by P***L on August 9, 2025*

I’ve been running the FiiO K11 R2R for a while now, and it’s an incredible way to step into ladder DACs without spending a fortune. Build quality is solid, the display is clear, and it’s truly plug-and-play. Unlike the standard K11, which uses a delta-sigma DAC chip, this version employs a true R-2R resistor ladder to convert digital to analog (No DAC chip). The R2R architecture gives music an organic, textured feel, and makes its OS/NOS switch worth exploring. Here’s how the two modes behave: •Oversampling (OS) is my default. It keeps rock, classical, and movie scores lively and punchy, with tight bass and precise imaging. •Non-Oversampling (NOS) softens edges and smooths the top end — great for older masters like Silver Springs from Fleetwood Mac, bright recordings, or late-night listening sessions. Switching is instant, so you can tailor playback to the recording. My listening chain is: Bluesound Node (coax out) → K11 R2R DAC → Denon AVR-X4500H (analog in) → Emotiva BasX amp → ELAC Debut 2.0 F5.2 towers + dual REL T/1003 10″ sealed subs. I run the AVR in Stereo mode while bypassing Audyssey EQ on the mains — this gives me the transparency of Pure Direct while keeping my subs engaged. Using the Audyssey MultEQ-X PC app, I let it measure the F5.2s’ natural roll-off and it automatically set their crossovers around 40 Hz. I also keep the AVR’s bass management set to LFE + Main, which blends the RELs smoothly with the towers instead of letting the subs “bloom” separately. The result is bass that feels integrated rather than overblown. Price-wise, the K11 R2R is unbeatable. Many R-2R DACs run for about $1,000 or more, but this one is roughly $175. The high-end models may squeeze out another 30–50 % of refinement, yet they’re not 5–6× better — for most setups, that premium price tag just isn’t justified. If you’re curious about R-2R sound and want a DAC that punches way above its price, the K11 R2R is an easy recommendation. In addition, this DAC has made my Sennheiser HD650XX headphones come alive for the first time ever! This DAC is a no-brainer upgrade IMHO, however, based on the reviews you may want to buy the additional extended warranty as this product only comes with a one year warranty. Thank you for reading this and I hope it was helpful!!

### ⭐⭐⭐⭐⭐ Sweet and Smooth like the Moon.
*by O***N on October 11, 2025*

This is my first real audiophile grade DAC and on day 1, I remember hearing the K11 R2R for the first time. The difference a dedicated DAC makes versus my phone DAC Dongles or previously, my Astro A40TR DAC I used for music & gaming was completely a night and day difference. I heard no static, no hiss, simply organic lossless music for the first time ever. It was beautiful like moon on a clear night sky. It was fun going through all my genres of music and favorite songs, like I was listening to them all over again for the first time. I have the DAC Set to 24-Bit 48.1Khz / DSD: 1-Bit (Which can only be achieved on the latest firmware that you have to manually install yourself.) Everything feels smooth, with a touch of warmness and clarity. Currently listening these IEM's: The AFUL Performer 5+2 & SIMGOT Supermix 4 / while using Low Gain Mode at ~45-55% Volume which is my personal sweet spot for listening on these IEMs. CONS: -My only cons with this is turning off the DAC requires you to hold the control knob down for (5) Seconds every time you want to power it off. It's not a big deal, but something to note. -No onboard EQ Functions. Not a deal breaker (software adjustments are just fine). Other FiiO Models like the K13 R2R have those more premium settings, but would have been nice to have at least on the R2R Version of the K11. -Stock Rubber Feet aren't very strong. DAC slides around a lot when pressing the 1-Button Knob. You have to order replacement rubber feet. THE VERDICT: In conclusion, for the price, you get a very nice small and compact Desktop DAC that looks elegant and from what I've heard competes with some much higher end DACs / R2R's at a fraction of the price. This is the budget king of DACs.

### ⭐⭐⭐⭐⭐ Excellent DAC! Good job FiiO!
*by B***T on February 26, 2025*

I tried quite a few DACs including some high end ones. I have 11-year old Denon DA-300USB that none of current DACs could even match (bifrost 2/64 would); until now - thanks to FiiO K11 R2R DAC. I find it intriguing when headphones are used to express sound stage observations - there is none whatsoever - it is all playing in your head - the sound stage is like 6-12" long. There is nothing to talk about it, really. Anyway, another intriguing findings is why other DACs failed to deliver sonic clarity, despite the excellent frequency response, low noise and distortion. I noticed that those DACs can deliver good quality to headphones users as channels do not interact - go straight to each ear. Different story with speakers, the channels do interact and if there is any phase shift at given frequency range (specially treble) - it can just cancel or reduce the final frequency response at the listening position - that would degrade experience severely. So those DACs do sound good in some compositions, but then fall apart in others. Neither my Denon, Schiit Bifrost have this issue, but many current DACs are making this mess. I am glad FiiO K11 R2R DAC is also free of this weird effects and delivers clean, slightly warm sound and good soundstage when used with speakers. Good job FiiO! PS: I noticed that with extended listening to FiiO I am getting fatigue and headache. I like elevated lows and highs in general, but in FiiO case - I was getting way more than I asked for. My advice - go to setup menu and change: OS (oversampling) to NOS (no over sampling). R2R are better without any oversampling. The sound will become more natural and neutral and you can listen to it for hours. It is still a little bit buggy, but not sound related: IDLE standby does not work, display shows signal sampling rate when there is no signal. I hope FiiO will address those bugs in the future. the LO (line out) mode makes very high voltage, well above 2V - it could cause clipping in some preamps, the only way is to switch to variable mode and reduce volume to ~96dB

## 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)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-25*