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The Fosi Audio SK02 is a versatile desktop DAC and headphone amplifier that redefines "performance per square inch." Despite its portable-friendly footprint, it delivers desktop-grade output power and sophisticated digital-to-analog conversion. Whether you are driving sensitive IEMs or demanding full-sized planar magnetic headphones, the SK02 provides a clean, dynamic, and detailed sonic signature.
ES9038Q2M Sabre DAC: At the heart of the SK02 is the acclaimed ESS Sabre ES9038Q2M chip, known for its exceptional dynamic range and ultra-low distortion.
Master-Quality Audio: Supports high-resolution decoding up to PCM 32-bit/384kHz and DSD512, ensuring that every nuance of your lossless library is preserved with absolute fidelity.
1100mW High-Power Output: Through its 4.4mm balanced port, the SK02 delivers up to 1100mW @32Ω, providing enough headroom to drive high-impedance headphones with ease and authority.
Dual Gain Modes: Features a High/Low gain switch to optimize the noise floor and power delivery for different earphone sensitivities, ensuring a pitch-black background for IEMs.
Balanced & Single-Ended Outputs: Equipped with both a 4.4mm Balanced and a 3.5mm Single-Ended headphone output to accommodate all your gear.
Integrated Multifunction Knob: The top-mounted aluminum knob provides precise volume control and doubles as a play/pause button, offering an ergonomic and tactile desktop experience.
Optical Input/Output: Uniquely features an optical port that allows the SK02 to act as a bridge for powered speakers or home theater systems, expanding its utility beyond just a headphone amp.
| Component | Specification |
| DAC Chip | ESS Sabre ES9038Q2M |
| Max Output Power | 1100mW @32Ω (Balanced), 280mW @32Ω (Single-ended) |
| Decoding Support | PCM 384kHz/32bit, DSD256/DSD512 |
| Input | USB Type-C, Optical |
| Output | 4.4mm Bal, 3.5mm SE, Optical |
| SNR / THD+N | 116dB / 0.001% |
| Recommended Impedance | 16Ω - 300Ω |
The SK02 is built for the modern audiophile who values flexibility. Its sleek aluminum alloy body fits perfectly under a monitor or in a travel bag. Powered via USB-C, it eliminates the need for bulky external power bricks while maintaining a sophisticated power management system that prevents interference. The Fosi Audio SK02 is the ultimate "all-in-one" solution for users looking to upgrade their PC/Mac audio or mobile listening setup to a professional standard.
Choose the SK01 if you already have a DAC or use an analog source and want massive driving power and the ability to manually adjust EQ (Bass/Mid/Treble). It is also the only choice if you need a portable battery-powered unit.
Choose the SK02 if you need an all-in-one digital solution to connect your PC or phone via USB. It offers superior detail through its high-end ESS DAC and supports balanced 4.4mm headphones, which provides a cleaner signal.
The SK02 is a headphone amplifier with built-in decoding functionality, designed foruniqueness and practicality, lt is equipped with a multifunctional volume control knob.separate gain and mode selection buttons. Get the best performance out of yourheadphones.
Equipped with dedicated buttons for high/low gain and input source, a simple touch switch settings, crafting perfect sound.
Efficient connectivity and clear transmission for seamless high-resolution audio, ushering in a new era of high-quality audio transmission.
Dual enjoyment in one: The seamless fusion of AUX and optical outputs provides a professional audio experience for various devices
Precision-engineered for durability and reliability providing a smooth and comfortable operation alexperience.
