SKU: 59374151696

FiiO K11 R2R DAC and Headphone Amplifier

Sale price$116.55 Regular price$129.50
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

FiiO K11 R2R DAC and Headphone AmplifierFIIO's newly self developed four channel fully differential 24bit R2R DAC consists of 2x 48 precision thin film resistor arrays per channel, totalling 192 resistors with 0. 1% tolerance and low temperature drift(30ppm). This configuration delivers a unique and charming sound. The K11R2R employs a fully differential architecture, resulting in lower noise, with less FFT harmonics and a darker music background compared to typical ones. The NJW1195A is a

FIIO's newly self-developed four-channel fully differential 24bit R2R DAC consists of 2x 48 precision thin-film resistor arrays per channel, totalling 192 resistors with 0.1% tolerance and low temperature drift(30ppm). This configuration delivers a unique and charming sound.

The K11R2R employs a fully differential architecture, resulting in lower noise, with less FFT harmonics and a darker music background compared to typical ones.

The NJW1195A is a 4-channel electronic volume controller. The resistor ladder electronic potentiometer is low distortion and low noise, allowing precise volume adjustment.

3 gain levels+ 3 independent volume curves
The 3 independent gain levels and volume curves allow the K11 R2R to give you a better listening experience with various types of headphones, whether you are using sensitive earphones or harder to drive over-ear headphones.

The capacitors' ultra-low ESR, combined with excellent anti-interference capabilities, allow them to provide a stable and clean power supply and thus achieve high-quality sound.

General Specifications
Hardware solution    
SoC: GD32F303RE, DAC: FIIO-developed R2R DAC, USB decoding: SA9312L, AMP: SGM8262-2*2

Volume control
Volume knob

Weight
420g

Dimensions
147x133x32.3mm (including feet)

Gain
L/M/H

Adaptive impedance
PO: 8~150Ω
BAL: 8~350Ω

Driver-free mode (switch mode)
Supported    

Oversampling setting
OS/NOS

FIIO Control
N/A

Max supported sampling rate
384kHz-32bit/DSD256 (USB DAC)
192kHz-24bit (Coaxial)
96kHz-24bit (Optical)

Buttons and Ports
Knob    
Encoder knob (including volume adjusting and menu confirming)

USB
Type-C (data transmission)

Single-ended line-out
RCA port

Digital optical in
Optical port

Digital coaxial in
RCA port

Digital coaxial out
RCA port (only works in USB mode)

Balanced out
Standard 4.4mm port

Headphone out
Standard 6.35mm port

Power Supply
Parameters

Power supply
DC 12V/2A

Battery capacity
No battery

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: 59374151696

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SM
West Palm Beach, US
★★★★★ 5
Great purchase
Material Type: Recycled Polyester, Color: Dark Navy, Size: X-Large
Purchased several shirts, all were great quality. You never know what you’ll get when you purchase sight unseen, these are worth it. Great value, style, and comfort. Color is exactly what you see online. True to size.
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Reviewed in the United States on November 25, 2025
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Jocelyn
Bozeman, US
★★★★★ 4
Great quality for price
Material Type: Recycled Polyester, Color: Red Stripe, Size: XX-Large
Very impressed with the shirt quality, especially for such a low price. Sizing is accurate.
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Reviewed in the United States on May 21, 2026
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Shawn SnoMan Thompson
Birmingham, US
★★★★★ 5
For work or casual wear, this polo is a great choice.
Material Type: Recycled Polyester, Color: Port Stripe, Size: X-Large
I really like this polo. I've been wearing it once a week or every other week since November. Its very comfortable and breathable. This polo feels like it should last a while. The fit is good. I typcally wear XL and this XL fits great. I've pruchased it in both burgundy and black so far. I definitely recommend this shirt. For work or casual wear, this will look good.
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Reviewed in the United States on January 11, 2026
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Verified Purchase
Tech Dad
Battle Creek, US
★★★★★ 5
Great value: These are my go-to work from home shirt
Material Type: Recycled Polyester, Color: Blue, Size: X-Large
I’ve been pleasantly surprised by these shirts and wear them weekly for Zoom calls, since I’m still working from home these days. I figured at the price point it was worth trying them out, and now I’ve bought several in different colors. They aren’t super soft, but they are comfy and look nice. I’m 6’1” ~220 pounds, and the XL slim fit still has plenty of room. I imagine the regular cut is incredibly boxy and oversized. The difference between polyester vs recycled polyester is inconsequential. I typically buy expensive golf shirts, and these definitely aren’t as nice. They are a fraction of the cost though and a great “beater” work shirt / hang out shirt. It’s nice wearing something that looks and feels decent, but if something happens to it, you can toss and it and pick up another for the cost of a chipotle burrito.
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Reviewed in the United States on May 29, 2022
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Espresso
Dallas, US
★★★★★ 3
Great price, not great quality
Material Type: Recycled Polyester, Color: Black, Size: Small
Simple, straight forward all black polo. I am a size medium woman (with some room since I don't like form-fitting) and bought a men's small. Fits perfectly for my frame. Long enough to tuck in for my part-time extra weekend job uniform. Also suitable for the golf course. A little thin, and if you hold it up to light you can sort of see through it. *Not* flowy, soft and smooth fabric like a rash guard/sun shirt - more structured than that. But it's cool and does the job for the price under $10.
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Reviewed in the United States on August 13, 2024

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