Fosi Audio SK02 Desktop USB DAC Headphone Amplifier Hifi Portable DSD Audio Decoder with Black Knob

Fosi Audio SK02 Desktop USB DAC Headphone Amplifier Hifi Portable DSD Audio Decoder with Black Knob

Features:
 SK02 Mini Desktop DAC Headphone Amp
* Compact and powerful: ES9038Q2M DAC chip, SGM8262 op-amp, PCM384, and DSD256 support

A Top Choice for Professional-Grade Audio Quality
* SK02 is designed to meet the needs of audiophiles and is compatible with both low and high impedance headphones.
* Whether you're enjoying the subtle textures of classical music or the powerful energy of modern beats, this device delivers an outstanding audio experience.
* It emphasizes purity and detail, fulfilling audiophiles' pursuit of high-fidelity music.

Minimalist Audio Experience in a Compact Form
* Whether placed in a study, living room, or studio, SK02 integrates seamlessly with your space, adding elegance and harmony to any environment.

High-End ES9038Q2M DAC Chip
* The chip delivers exceptional dynamic response and outstanding sound quality.
* It features wide compatibility with various audio formats.
* With high-resolution decoding and pure tonal performance, it transforms every listening session into a remarkable sensory journey.

Supports up to PCM384kHz and DSD256
* Experience ultimate audio resolution and rich, vivid musical detail.
* It faithfully reproduces wide dynamics and offers flawless sound quality—allowing you to enjoy every moment to the fullest.

Multifunctional Large Knob for Easy Control
* The knob integrates playback, pause, mute, and volume adjustment into one control. It simplifies operation and enhances the user experience.
* With stepless rotation, you can adjust volume freely.
* Single-click to play/pause, double-click to mute — quickly switch music states for more efficient and comfortable audio control.

Powerful Output Drive
* SK02 delivers stable and strong output power, ensuring optimal performance whether you're using lightweight in-ear monitors or professional over-ear headphones.

High/Low Gain Modes for 16-300Ω Headphones
* It supports both high and low impedance headphones, providing flexible gain options for a truly customized listening experience.

Compatible with Power Amplifiers
* It can be used with an amplifier to greatly enhance sound quality. Its high resolution ensures every note — from soft bass to crisp treble — is presented with precision, delivering a pure audio experience.

Versatile Input and Output Interfaces
* The SK02 meets various device needs with flexible connectivity options.
* It supports dual headphone outputs: 3.5mm single-ended and 4.4mm balanced — switch freely to match your listening style.
* Supports optical and USB input: enjoy seamless, high-definition audio transmission.
* 3.5mm AUX/optical combo design: A professional-grade solution combining AUX and optical in one unit for wide compatibility, delivering high-quality audio performance across various devices.

Colorful Indicator Lights Reveal Audio Format at a Glance
* The PCM and DSD indicator lights illuminate instantly, clearly displaying the audio format of each track and helping you focus on every musical detail.

One-Touch Gain and Input Mode Switching
* Dedicated buttons for high/low gain and input source selection allow instant switching with a light press, ensuring optimal sound quality for any scenario.

A Perfect Blend of Tactile Feel and Aesthetics
* Crafted with a fine sandblasted finish, the surface is both durable and refined—embodying our relentless pursuit of quality.

Full Aluminum Alloy Body
* Built from high-grade aluminum alloy using advanced CNC uni-body machining, the chassis is both sturdy and elegant, with an integrated design that exudes craftsmanship.

Precision Chamfered Top Edges
* Smooth and graceful contours not only enhance its sleek appearance but also provide a comfortable grip—every touch is a pleasure.

Solid Aluminum Alloy Knob
* The knob is precisely engineered for durability and offers a smooth, satisfying tactile experience with every adjustment.

Measured Specs, Visible Sound Quality
* Rigorous performance testing ensures that excellent sound is not just a claim, but a measurable, visible promise of quality.

Specifications:
Input: 
* USB-C and Optical (OPT)

Output:
* 3.5mm & 4.4mm headphone output
* 3.5mm AUX/OPT output

Headphone Output Power:
* 3.5mm Single-ended: Low gain: 90mW at 32Ω; High gain: 280mW at 32Ω
* 4.4mm Balanced: Low gain: 350mW at 32Ω; High gain: 1100mW at 32Ω

Signal-to-Noise Ratio (SNR):
* 3.5mm Single-ended: Low gain: 116dB; High gain: 120dB
* 4.4mm Balanced: Low gain: 110dB; High gain: 115dB

Total Harmonic Distortion (THD):
* ≤0.001% at 1kHz

Noise Floor:
* 3.5mm Single-ended: 3.7µV
* 4.4mm Balanced: 12µV

Crosstalk:
* 3.5mm Single-ended: Low gain: 128dB; High gain: 137dB
* 4.4mm Balanced: Low gain: 112dB; High gain: 110dB

Frequency Response:
* 20Hz-20kHz (±0.02dB)

Supported Headphone Impedance:
* 16-300Ω

Input Voltage:
* DC 5V

Packing List:
* 1 × SK02 DAC Headphone Amplifier
* 1 × USB-A/C to USB-C Cable
* 1 × User Manual
    
Packaging Details:
* Weight: 0.5kg

Note:
* It does not support mobile phones.