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.

A Variety of Inputs and Outputs Ready for You

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.

1400mW Large Power Output Capably Pushing

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.

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.

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.

Slim on One Side Stable on the Other

The slim aluminium 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.

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.

Adjustable GB Logo Lighting

The FIlO 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.

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.

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.

Specifications:

General:

• Name/Model: K11
• Hardware solution:
• SoC: GD32F303RE
• DAC: CS43198
• USB decoding: SA9312L
• SPDIF decoding: MS8422N
• AMP: SGM8262-2*2
• Volume control: Volume knob
• Weight: About 407g
• Dimensions: 147x133x32.3mm (Including feet)
• Gain: L/M/H
• Adaptive impedance: PO: 8~150Ω, BAL: 8~350Ω
• Driver-free mode (switch mode): Supported
• Max supported sampling rate: 384kHz-32bit/DSD256 Native 16/24/32bit (USB DAC), 192kHz-24bit (Coaxial), 96KHz-24bit (Optical)
• Sampling rate indication: Show on display screen; LOGO indicator light shows as default: Cyan: 48KHz and below, Yellow: 48kHz and above, Green: DSD
• Firmware upgrade: Supports upgrade through USB
• FiiO Control: N/A

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 output interface: Standard 4.4mm socket
• Headphone out: Standard 6.35mm port

Power Supply Parameters:

• Power Supply: DC 12V/2A
• Battery capacity: No battery

Audio Parameters:

• THD+N & Noise: < 0.00035% (1kHz/-0.3dB@10KΩ)
• SNR: ≥126dB (A-weighted)
• Crosstalk: ≥120dB
• Noise floor: < 0.9uV (A-weighted)
• Frequency response:
• 20Hz~50kHz: damping< 0.1dB
• 20Hz~20KHz: damping< 0.1dB
• Line output level: 1.95Vrms
• Output power: L+R≥720mW +720mW (16Ω, THD+N< 1%)
• Output impedance: < 1.2Ω
• Crosstalk: ≥71dB
• Peak output voltage: 12Vp-p
• SNR: ≥123dB (A-weighted)
• THD+N & Noise: < 0.00059% (1kHz/-8.1dB@32Ω)
• Noise floor: < 2.8uV (A-weighted)
• Frequency response:
• 20Hz~50kHz: damping< 0.2dB
• 20Hz~20KHz: damping< 0.1dB
• Output power: L+R≥570mW+570mW (16Ω, THD+N< 1%)
• Output impedance: < 2.4Ω
• Crosstalk: ≥106dB
• Peak output voltage: 24.5Vp-p
• SNR: ≥123dB (A-weighted)
• THD+N & Noise: < 0.0010% (1kHz/-14.5dB@32Ω)
• Noise floor: < 4.9uV (A-weighted)
• Frequency response:
  • 20Hz~50kHz: damping< 0.2dB
  • 20Hz~20KHz: damping< 0.1dB