Fosi Audio SK02 Desktop DAC Headphone Amplifier

Desktop Power. High-Resolution Sound.

The Fosi Audio SK02 is a compact desktop DAC and headphone amplifier designed to bring powerful, high-resolution audio to your listening setup. With an ESS SABRE ES9038Q2M DAC, 3.5mm and 4.4mm headphone outputs, USB and optical inputs, the SK02 is built for music, movies and everyday desktop listening.

High-Resolution Audio Performance

Experience detailed and clean sound with support for PCM up to 32-bit/384kHz and DSD256 through USB, while optical input supports up to 24-bit/192kHz.

The high-performance ES9038Q2M DAC and SGM8262 op-amps provide a refined listening experience with low distortion and a high signal-to-noise ratio.

Powerful Headphone Amplification

Small footprint, serious power.

The SK02 provides up to 190mW @ 32Ω through 3.5mm and 755mW @ 32Ω through 4.4mm balanced output, with support for headphones and IEMs from 16–300Ω.

3.5mm & 4.4mm Outputs

Choose the connection that suits your headphones.

The SK02 features both 3.5mm single-ended and 4.4mm balanced headphone outputs, giving you greater flexibility for different headphones and IEMs.

It also provides a 3.5mm line-out/optical output for integration with other desktop audio equipment.

Simple & Easy to Use

Designed for effortless desktop listening, the SK02 features a large multifunction control knob for power, playback and volume control.

Quick-access buttons make it easy to switch between high/low gain and input modes, while colourful indicator lights show the current operating mode and sampling rate.

Versatile Desktop Audio Hub

Connect the SK02 to computers, laptops, CD players, TVs and projectors through USB or optical input.

Beyond headphone listening, it can also function as a preamp, allowing you to connect active speakers or an amplifier for a complete desktop or home audio system.

Premium Aluminium Construction

The SK02 is crafted from a single piece of CNC-machined aluminium alloy, combining a clean, minimalist appearance with a durable desktop build.

Its compact 121 × 51 × 43mm design keeps your setup neat without compromising performance.

Why Choose the Fosi Audio SK02?

• Desktop DAC and headphone amplifier
• ESS SABRE ES9038Q2M DAC
• SGM8262 op-amps
• PCM up to 32-bit/384kHz
• Native DSD256 support
• USB and optical inputs
• 3.5mm and 4.4mm headphone outputs
• Up to 755mW @ 32Ω through 4.4mm
• Supports headphones and IEMs from 16–300Ω
• High/low gain modes
• Multifunction control knob
• Sampling-rate indicator lights
• Plug-and-play operation
• Preamp functionality
• CNC-machined aluminium alloy body
• Compact 121 × 51 × 43mm design
• Includes USB-A/C to USB-C cable