FiiO at Audio46

FiiO K11 Balanced Desktop DAC/Amp


Product SKU: k11-black


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Product Details

Audio46's Opinion

As usual, FiiO is giving you a lot for the price. The K11 not only offers a commendable level of power, but also just makes your music sound audibly better. With an intricate, highly controlled delivery and more spacious imaging, the K11 brings just enough character to your headphone’s sound without manipulating its essence. The only major downside to the K11 is the lack of MQA support. But if you’re not a Tidal streamer, who cares; for $130, the K11 overdelivers in every other way.

Our Full Review

↓ Details provided by FiiO
(Specifications and appearance of this product are subject to change without notice)

FiiO K11 Balanced Desktop DAC/Amp Overview

Truly balanced. Truly brilliant: Desktop DAC and Headphone Amplifier

  • Variety of inputs and outputs
  • 1400mW large power output 3 gain levels, 3 volume curves
  • Specially-designed audio circuit
  • Specially-designed power supply
  • Supports 384kHz/32bit, DSD256 Slim build
  • Custom LCD screen
  • Adjustable RGB logo lighting
  • Multi-function knob
  • USB DAC driver-free mode
  • Hi-Res AUDIO

FiiO K11 Balanced Desktop DAC/Amp Main Features

A variety of inputs and outputs 

On the K11 are USB*, optical, and coaxial inputs* as well as 4.4mm, 6.35mm, RCA line-out, and coaxial outputs*. Having more inputs and outputs than other typical entry-level amps means the K11 is more than capable of meeting your needs of putting together a capable audio setup.
*USB connection to phones for decoding does not consume the phone's battery
*Coaxial input and output share the same physical connector, Coaxial output can only be used in USB mode

FiiO K11 Balanced Desktop DAC/Amp Input and Outputs

1400mW large power output

Under a 320 load, the K11 is capable of pushing 1400mW under balance modes. This allows it to easily drive many HiFi earphones and headphones to fully unlock their potential.

FiiO K11 Balanced Desktop DAC/Amp Power Output

3 gain levels, 3 volume curves

The K11 has 3 separate gain levels, each gain level having its own volume curve. This allows the K11 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.

FiiO K11 Balanced Desktop DAC/Amp Gain Levels

Specially-designed audio circuit & Specially-designed power supply

Within the K11's slim build lies a specially designed audio circuit designed for great sound quality. This is backed by more than 16 low-noise LDOS for precise voltage stabilization and powered by an external 12V switching power supply. All of this leads to a purer and more robust supply of power, leading to stable high-quality audio and thus truly enjoyable music all of the time.
FiiO K11 Balanced Desktop DAC/Amp Audio Circuit and Power Supply

Slim on one side, Stable on the other

The slim aluminum alloy body allows you to easily place the K11 anywhere, making it easier to put the device in a way that complements the rest of your desk. Thanks to the silicone anti-slip pad, the K11 rests stably and firmly on your table too.

FiiO K11 Balanced Desktop DAC/Amp Form Factor

A beautiful screen full of clarity

A custom, high-contrast, and durable LCD screen* allows you to easily see the sampling rate, volume, gain, or output mode with just a glance.
*Durable LCD screen, always on with no burn-in

FiiO K11 Balanced Desktop DAC/Amp LCD Screen

Adjustable RGB logo lighting

The FIIO logo is illuminated with RGB lighting, giving you a quick way to identify the sampling rate of the current audio being played back. Six LED strips work in conjunction with a carefully placed reflective film and parts of the body designed to reflect light to make the light show uniform and elegant.
* Brightness, color, and light patterns are all adjustable using the knob state

FiiO K11 Balanced Desktop DAC/Amp Adjustable RGB Lighting

One knob, One source of total

In the K11's minimalist design, the volume knob acts as a crucial source of total control. The K11's multi-function volume knob is used to power the device on and off, for menu operation, for volume adjustment, and for other functions. The knob is designed so that you can quickly execute various complex actions by simply pressing and turning the knob. You can also quickly switch between LO/PO* modes by double-pressing the knob, making it easier for you to appropriately connect to different headphones or audio setups.
*LO/PO modes remember the last volume set in each mode independently, no need to readjust the volume when switching between modes

FiiO K11 Balanced Desktop DAC/Amp One Knob

Driver-free mode, Worry-free operation

The K11 used in USB DAC mode does not require a driver on Windows 10 and above systems, and can also be used with video game consoles such as the PS5 and the Switch. Simply plug and play for worry-free usage whether you are enjoying music or being immersed in games.
*Installing the driver unlocks support for higher sampling rates

FiiO K11 Balanced Desktop DAC/Amp Driver Free Mode

Two elegant colors

  • Obsidian black: Understated charm, an earthly beauty
  • Midnight silver: Exquisitely elegant, stylishly radiant

FiiO K11 Balanced Desktop DAC/Amp Two Color Options


  1. K11 
  2. Power adapter (including AC cable)
  3. USB A to C cable
  4. 6.35mm adapter 
  5. Quick start guide
  6. Warranty card

FiiO K11 Balanced Desktop DAC/Amp In The Box


Form Factor
Number of Headphone Channels
Single Channel
Recommended Headphone Impedance
Not Specified by Manufacturer
Headphone Output Power
1/4" Unbalanced:
≥ 520 mW per Side into 32 Ohms (1% THD)
1/4" Unbalanced:
≥ 60 mW per Side into 300 Ohms (1% THD)
4.4 mm Balanced:
≥ 1400 mW per Side into 32 Ohms (1% THD)
4.4 mm Balanced:
≥ 250 mW per Side into 300 Ohms
Digital Chipset
1 x Cirrus Logic CS43198
Analog Circuitry
Power Amplifier Op-Amp:
2 x SGM8262-2


Analog Audio I/O
1 x Stereo RCA TS Unbalanced Stereo Line Output (1 Stereo Pair)
Digital Audio I/O
1 x TOSLINK Optical S/PDIF Input
1 x RCA Coaxial S/PDIF In/Out
1 x USB-C


Frequency Response
Line, Headphone, Balanced Headphone Outputs:
20 Hz to 50 kHz
20 Hz to 20 kHz
Maximum Output Level
RCA Line Outputs:
1.95 Vrms
1/4" Headphone Outputs:
12 V p-p
4.4 mm Balanced Headphone Outputs:
24.5 V p-p
1/4" Headphone Outputs:
8 to 150 Ohm (Unbalanced)
4.4 mm Headphone Outputs:
8 to 350 Ohm
RCA Line Outputs:
1/4" Headphone Outputs:
1/8" / 3.5 mm Balanced Headphone Outputs:
RCA Line Outputs:
≥ 120 dB
1/4" Headphone Outputs:
≥ 123 dB
4.4 mm Balanced Headphone Outputs:
≥ 123 dB
RCA Line Outputs:
< 0.9 µV (A-Weighted)
1/4" Headphone Outputs:
< 2.8 µV (A-Weighted)
4.4 mm Balanced Headphone Outputs:
< 4.9 µV (A-Weighted)
RCA Analog/Line Outputs:
≥ 120 dB
1/4" Headphone Outputs:
≥ 71 dB
4.4 mm Balanced Headphone Outputs:
≥ 106 dB

Digital Audio

Sample Rates
384 kHz (PCM)
Bit Depths
32-Bit (DSD)
Up to 32-Bit (PCM)
OS Compatibility
*As of October, 2023: Check with manufacturer for the most up-to-date compatibility
Mobile App Compatible
*As of May, 2023: Check with manufacturer for the most up-to-date compatibility
Mobile Device Compatibility


Power Requirements
AC/DC Power Adapter (Included)
AC/DC Power Adapter
15 VDC at 2 A (Included)


5.8 x 5.2 x 1.27" / 14.7 x 13.3 x 3.23 cm
0.9 lb / 407.0 g

Packaging Info

Package Weight
2.07 lb
Box Dimensions (LxWxH)
9.5 x 8.2 x 2.4"

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