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Compact Yet Powerful
Fosi Audio SK02 Desktop DAC Headphone Amp
Capturing every nuance from classical to modern beats, the SK02 blends purity and rich details that are perfect for HiFi enthusiasts.
Premium Sound, Audiophile's Choice
The SK02 is a headphone amplifier with built-in decoding functionality, designed for uniqueness and practicality. It is equipped with a multifunctional volume control knob, separate gain and mode selection buttons. Get the best performance out of your headphones.
- Input: USB, OPT
- Output: 3.5mm single-ended, 4.4mm balanced, 3.5mm AUX/OPT
- Max Power Output: 3.5mm: 280mW@32Ω, 4.4mm: 1100mW@32Ω
- Terminating Impedance: 16-300Ω
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Minimalist Desktop Audio
It effortlessly fits any desktop space, adding a touch of elegance and harmony to every corner.
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Fully Unleash Exceptional Power
Provides stable and strong power for high-impedance headphones and IEMs to perform at their best.
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Ideal Partner for Amplifiers
Enhances audio clarity with deep bass to clear highs for an immersive listening experience.
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High and Low Gain Modes
Adapts to 16-300Ω impedance headphones with flexible gain for a tailored auditory experience.
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Multifunctional Knob for Easier Control
Combines play, pause, mute, volume controls for a streamlined process, enhancing user experience.
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All Aluminum Alloy Chassis
Made with aluminum alloy using advanced CNC molding, achieving a robust yet refined unibody design.
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3.5mm Single-End and 4.4mm Balanced
Easily meet your diverse needs, making it the ideal companion for your headphones and IEMs.
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SABRE ES9038Q2M DAC & SGM8262 Op-Amps
With the outstanding high resolution, the SK02 headphone amplifier brings you a crystal clear sound.
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Crafted for Audiophiles
Robust output power, high signal-to-noise rate and ultra-low noise floor.
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Supports High-Res PCM384kHz & DSD256
The Fosi SK02 masterfully restores sound, redefining the ultimate standards of auditory enjoyment.
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Colorful Indicators, Visible Music Formats
Instantly lit PCM and DSD indicators show audio format, helping your focus on every music detail.
Gain and Input Mode Switches
Equipped with dedicated buttons for high/low gain and input source; a simple touch switch settings, crafting perfect sound.
Supports Optical & USB Input
Efficient connectivity and clear transmission for seamless high-resolution audio, ushering in a new era of high-quality audio transmission.
3.5mm AUX/Optical Design
Dual enjoyment in one: The seamless fusion of AUX and optical outputs provides a professional audio experience for various devices.
Solid Aluminum Alloy Knob
Precision-engineered for durability and reliability, providing a smooth and comfortable operational experience.
Rian
Reviewed in Saudi Arabia on February 6, 2025
ممتاز لكن البيس يروح ، الصوت عالي جدا جدا لو عليت مرره ، ميزته صغير و التحكم من الجهاز نفسه ، إذا تشوف أفلام و ألعاب خاصتاً الشوتر ، مع سماعات محترمة تسمع الي ورا الجدار ، لكن للأغاني الي فيها بيس ثقيل ، خذ غيره
venturi antonio
Reviewed in Italy on January 29, 2025
Il prodotto e' eccellente tanto da renderlo adatto anche agli audiofili non troppo esigenti.Quindi per il semplice uso in cufffia per l'audio di film o streaming risulta fantastico perche' rispetta in maniera chiara e pulita le gradazioni tra "bassi e alti" senza interferenze o disturbi di nessun tipo. Ottimo rapporto(a mio avviso) qualita' prezzo per cui lo consiglio assolutamente! P.S.: il prodotto mi era gia' noto da tempo, ma questo e il modello piu' avanzato! Grazie come sempre ad Amazon che e' sempre una grande garanzia!
Katrina R.
Reviewed in Canada on January 26, 2025
PC integration is seamless, no software/bloatware needed PnPBuild Quality of SK02 is excellent, volume knob has great tactility/feedbackPaired with a set of Beyerdynamic DT770 Studio 80 ohm the sound quality is phenomenal for the price. Crisp, deep lows, crystal clear mids and highs even at MAX volume.Highly recommended if you want to drive a set of 32-250ohm cans without any fuss or finicky adjustments
Jason Wubz
Reviewed in Canada on January 11, 2025
Update:The seller reached out to me to troubleshoot the problem and I found that the cable works but only unidirectionally. This didn't explain why the first time it worked only briefly in the right direction and stopped working for a while. In the end, the cable seems like an inferior product because I have a relatively cheap spare cable that can work bidirectionally. Nevertheless I appreciated the excellent customer service. Updating to 4 stars.Original Review:I have the DAC connected my mac air with the included usb cable from usb c to usb c ends. With the slightest of wiggle, the DAC disconnects. At first I thought I received a faulty DAC, but I switch to another spare usb cable I had. Problem is then gone.The DAC is very decent in quality. I am also connecting my gaming console's optical out into this and I can switch between usb c and the optical. It's like a KVM switch but for audio. However, I do need to keep the mac air powered on as it draws power from the usb port. When connected to the mac air, I can tap the knob to pause an audio play. No additional software needs to be installed. One thing to note is that I cannot use my keyboard to control the volume and it has to be done with the knob instead. Audio is clean and I enjoy the listening experience.But as you can imagine, I cannot give this 5 stars because of the faulty poor quality cable.
crazy av hobby
Reviewed in Canada on August 28, 2024
Great sound i heart
Scott
Reviewed in Canada on August 15, 2024
This is a really decent unit. I found though you cannot put much volume into it, but other than that i does what it is meant for, and it's solid, good quality. The dial is really nice! Worth getting if you need an external volume controller.
A'Politan
Reviewed in India on July 23, 2024
The device is built like a tank and weighs about 350 gm. The form factor and the hype is what made me try it.The volume knob can also be used to turn on/off just like how it works on the Fosi ZA3 Amplifier.The 3.5 mm headphone jack is flimsy and does not inspire confidence that it would last.I had the device fed with a high quality linear supply through the 5v input and used the WIIM Pro Plus as a source via the optical connection for the cleanest signal.I also tested it with AKG N60 NC in low gain, the Sennheiser HD25 II and Sennheiser HD650 in high gain. I have a lot more demanding and high resolution cans but this did not inspire me to try them all.The ESS DAC used may be state-of-the-art but the headphone amp sounds mediocre at best. It sounds thin (lacking body), low dynamics, narrow instrument separation, minimal vocal texture and tone, very cold and almost sterile sounding product.It's very likely that these are targeted for use as a stand alone budget DAC, competing with the likes of SMSL SU-1 but with more features and functionality thrown in, or as an all-in-ones for IEMs and other low impedance portable solutions for the digital nomads.It did not work for me as a dedicated desktop solution although this is exactly the form factor and functionality I was looking for.In my books this sounds like good quality Radio Fidelity! YMMV...
Neki Prime
Reviewed in Canada on May 22, 2024
Only started getting into the Audio space and got the KZ-ZS10 Pro 2 and this DAC/AMP. I also tried the Fosi K5 Pro DAC/AMP as well but returned that one as the SK02 (this one) is more powerful and provides even better audio quality than I have anticipated. Keep in mind of the Hz you set Windows on as not all apps works with 32bit/384000 hz. But even then, I could tell the difference between the 2 DAC/AMPs right away and can easily recommend this as it sounds so much better overall.
Fabrizio
Reviewed in Canada on February 28, 2024
i have a jds labs atom dac and replaced with sk02 let me tell you, the clarity and the openness are really good for the price
customer
Reviewed in Canada on December 4, 2024
i do not use this DAC on any phones just my pc as I think it's better suited for a desk top situation but also works great
Serhii Vatamaniuk
Reviewed in Spain on December 19, 2024
Amazingly good dac, highly recommend, value per cost is insane!
Eiffes Pascal
Reviewed in Germany on December 13, 2024
I ordered the Fosi Audio SK02 a few weeks ago by Amazon.It arrived the day after in very good condition. I needed a headphone amp dac for my TV. After seeing the rezensions i decided to buy it. I connected the SK02 on my TV through the optical out which gives me a very good sound, it is loud enough to run my DT 770 pro, even on my laptop it sounds good when conncted on the usb-c, no drivers needed for Windows 11. I recommand this device if you don't want to use a bluetooth headphone.
MrLemon
Reviewed in Canada on April 29, 2024
I like the form factor and overall build. The knob and interface are a great design. Sound is not as good as the iFi Zen DAC 2. Sound is a bit thin,shouty, and lacking in body. Overall, a cold sterile sound with poor instrument and voice tone and texture. Used with Focal Listen Pro and NAD HP50.
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