Open Box FiiO K11 R2R High-Performance Desktop DAC / Headphone AMP
SKU: 88965390186

Open Box FiiO K11 R2R High-Performance Desktop DAC / Headphone AMP

Sale price$107.09 Regular price$118.99
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Description

Open Box FiiO K11 R2R High-Performance Desktop DAC / Headphone AMPOur open box products, used exclusively for unboxing videos, are original and unworn, available at a surprise discount price. Only one of each type in stockfirst come, first served. Purchase now for immediate shipping. Features: >High Performance Desktop R2R DAC AMP. >Fully Differential 24 Bit R2R Resistor Array. >NOS OS Dual Mode Free Switching. >Professionally Designed Electronic Volume Control Chipset(NJW1195A). >Supports 32 Bit 384kHz PCM and

Our open box products, used exclusively for unboxing videos, are original and unworn, available at a surprise discount price. Only one of each type in stock—first come, first served. Purchase now for immediate shipping.

Features:-

>High-Performance Desktop R2R DAC/AMP.

>Fully Differential 24-Bit R2R Resistor Array.

>NOS/OS Dual-Mode Free Switching.

>Professionally Designed Electronic Volume Control Chipset(NJW1195A).

>Supports 32-Bit/384kHz PCM and Native DSD256 Audio Signal Processing.

>Professional Audio Amp Circuit.

>1300mW+1300mW Strong Output.

>Three-Levels Adjustable Gain.

>Specially Designed Low-Noise Power Supply.

>6.35mm+4.4mm Dual Headphone Output Options.

>High-Quality Emerald Solid-State Capacitors.

>Customized LCD Display Screen.

>Global RGB Logo Light.

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, available now!!

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88965390186

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daina o'callaghan
Cuba, US
★★★★★ 5
Protection
Style: SPF 50
I love this product, especially my husband because it’s all-natural. It contains minerals that leave a slight white residue on the face. While it would be nice to have a clearer texture, it does a beautiful job of protecting you from the sun.
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Reviewed in the United States on April 22, 2025
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Dixie
Whiting, US
★★★★★ 5
Good sunscreen
Size: 1.7 Fl Oz (Pack of 1)
I really like the little bit of glow it gives my face. I’ve used it several times while on the water and it has worked well. I’ve not had any skin irritations.
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Reviewed in the United States on May 25, 2026
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Cj
Lowell, US
★★★★★ 5
Like this!
Size: 1.7 Fl Oz (Pack of 1)
Finish looks great. The light tint makes for a more even distribution. The smell is pleasant. SPF will help protect the face from the sun. I would purchase this again.
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Reviewed in the United States on April 1, 2026
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Katie Beecham
Alexandria, US
★★★★★ 5
Replaced 3 products
Size: 1.7 Fl Oz (Pack of 1)
This is a very good product. Everyday I use CeraVe lightweight 30 or 50 spf and mix Drunk Elephant D-Bronzi and B-Goldi drops for a tint and shimmer. This is the only “makeup” I wear as I don’t like heavy makeup and prefer just a subtle glow with a daily sunscreen. This product effectively replaces all of those products for me. I put this on to try yesterday afternoon and my husband immediately said “Did you do something different? You look good.” It’s is a little more runny than I expected but applies thinly (as I prefer) and provides just enough tint to cover some of my redness. The glow is beautiful. Love the packaging, the pump is very easy to manage and keep clean. Too soon to know if it will cause breakouts or how well it holds up in the sun (although my other experiences with SunBum have been that it works well). I will update my review if I have breakouts. Buy this! Edited to add: a dermatologist complimented my skin due to this product “your skin looks great, you’re glowing!” I have not had breakouts from using this product. I still use everyday with a little cream blush and mascara and call it good. I stock up when this goes on sale but even when not on sale it is a great price. Still not 100% sure about it’s effectiveness at sun protection although I’m pretty sure it’s better than nothing. Wish this exact product was available in 50 spf. Still a fave!
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Reviewed in the United States on April 6, 2025
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Douglas A. Mccarville
Draper, US
★★★★★ 5
A tinted sunscreen.
Size: 1.7 Fl Oz (Pack of 1)
It was really nice. However, it has a strong tint to it and feels like Makeup with sunscreen. Nice, but uninexpected.
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Reviewed in the United States on April 21, 2026

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