--- product_id: 611044029 title: "Fosi Audio SK02 DAC Headphone Amplifier & Preamp, Desktop Audio DAC with USB-C and Optical Input, 4.4mm Balanced & 3.5mm Headphone Output, Digital-to-Analog Converter for PC and Home Audio System" brand: "fosi audio" price: "€ 131.90" currency: EUR in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.ie/products/611044029-fosi-audio-sk02-dac-headphone-amplifier-and-preamp-desktop-audio store_origin: IE region: Ireland --- # DSD256 & PCM 32bit/384kHz decoding Supports 16-300Ω headphones/IEMs 1100mW balanced output power Fosi Audio SK02 DAC Headphone Amplifier & Preamp, Desktop Audio DAC with USB-C and Optical Input, 4.4mm Balanced & 3.5mm Headphone Output, Digital-to-Analog Converter for PC and Home Audio System **Brand:** fosi audio **Price:** € 131.90 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your audio game—hear what you’ve been missing! ## Quick Answers - **What is this?** Fosi Audio SK02 DAC Headphone Amplifier & Preamp, Desktop Audio DAC with USB-C and Optical Input, 4.4mm Balanced & 3.5mm Headphone Output, Digital-to-Analog Converter for PC and Home Audio System by fosi audio - **How much does it cost?** € 131.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/611044029-fosi-audio-sk02-dac-headphone-amplifier-and-preamp-desktop-audio) ## Best For - fosi audio enthusiasts ## Why This Product - Trusted fosi audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Connectivity:** USB-C and optical inputs seamlessly integrate with PCs, TVs, and more. - • **Built to Last & Impress:** CNC-machined aluminum alloy chassis combines durability with sleek, modern style. - • **Audiophile-Grade Clarity:** ESS SABRE ES9038Q2M DAC delivers ultra-low noise and 120dB SNR for pristine sound. - • **Plug-and-Play Simplicity:** No drivers needed—just connect and control with an intuitive multifunction knob. - • **Powerhouse in a Compact Frame:** Mighty 1100mW balanced output drives any headphone with ease. ## Overview The Fosi Audio SK02 is a desktop DAC and headphone amplifier featuring high-resolution DSD256 and PCM 32bit/384kHz decoding, a powerful 1100mW balanced output, and ESS SABRE ES9038Q2M DAC chip. It supports a wide range of headphones (16-300Ω), offers USB-C and optical inputs, and requires no drivers for instant plug-and-play use. Crafted from CNC-machined aluminum alloy, it combines durability with a sleek design, making it a versatile centerpiece for any professional or home audio setup. ## Description Buy Fosi Audio SK02 DAC Headphone Amplifier & Preamp, Desktop Audio DAC with USB-C and Optical Input, 4.4mm Balanced & 3.5mm Headphone Output, Digital-to-Analog Converter for PC and Home Audio System: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Compact Desk DAC That Packs Real Power - I picked up the Fosi Audio SK02 because my PC’s built-in audio was starting to feel limited, and I wanted a small desktop unit that could drive my headphones better while also handling optical input from my setup. The mix of USB-C, optical, 3.5mm, and 4.4mm balanced outputs looked practical for everyday use without taking up much space. Going in, I expected a clean-sounding DAC/amp that could push regular headphones and some planars without noise or strain, plus basic preamp use. It mostly delivered. The aluminum case feels solid and sits steady on the desk. The big volume knob is smooth, and the gain switch plus LEDs make it easy to see what’s going on. Plug in via USB-C or optical and it just works—no drivers needed on my end. Sound is neutral and clear. Bass stays tight, mids are open, and it has enough power on the balanced 4.4mm side to give harder-to-drive headphones some headroom. I use it for music and gaming, and the quieter background helps pick out details better than the motherboard jack. The line out also works fine if I want to feed a powered speaker or another amp. For daily desk use it’s handy—connect the PC or a TV via optical, switch headphones quickly, and keep the volume independent. Value feels solid for what you get in power and inputs at this price point. A few things keep it from being perfect. The treble can come across a bit linear or bright depending on the headphones. It always needs USB-C power, so it’s not fully portable. And there’s no app or fancy tuning options if you like tweaking on the fly. It met my main expectations for cleaner desktop audio and enough power without complications. Not the last word in refinement, but a practical step up from basic PC sound that does the job well. Review: Fosi DAC - Works great !! I connected it to my laptop via a USBc cable. I noticed an improvement in overall sound. I’m running it through a Fosi BT30D Pro. Makes for a cool, compact, and clean sounding desktop set up. I used Google to help with optimizing the processing settings. Would definitely buy again…. Well I would…. If I had another home office computer. ## Features - Compact Yet Powerful: The SK02 employs a minimalist and stylish design language. Despite its small size, it boasts mighty features. It supports DSD256 and PCM 32bit/384kHz high-resolution decoding, along with 3.5mm single-ended and 4.4mm balanced headphone outputs. Its robust power can easily drive wide range of headphones and IEMs with an impedance range of 16-300 ohms - Stunning Performance: It features a high-end ESS SABRE ES9038Q2M DAC and SGM8262 op-amps. Its excellent circuit design ensures superior parameters with a SNR as high as 120dB, a low noise floor of only 3.7μV, and an incredibly low THD of 0.001%. The 4.4mm balanced output power reaches an impressive 1100mW at 32 ohms. The exceptional high-resolution capability and pure sound quality make every listening experience an extraordinary sensory journey - User-Friendly Design: The SK02 requires no drivers and offers plug-and-play convenience. It integrates a big multi-functional control knob, allowing easy access to power on/off, play/pause, and volume adjustments. The unit features quick-switch buttons for high/low gain and input modes. Additionally, its colorful indicator lights enable effortless identification of the current working mode and the song's sampling rate - Remarkable Versatility: Supports USB and optical input, widely applicable for decoding with computers, laptops, CD players, TVs, and projectors. Not only can it function as a headphone amplifier, but it can also serve as a preamp, pairing with active speakers or an amplifier like Fosi Audio V3, ZA3, TB10D amp and passive speakers to form a desktop listening or home audio system - Exquisite and Durable: The SK02 is crafted from a single piece of aluminum alloy using CNC machining and a delicate sandblasting process. This not only gives it an exquisite appearance but also ensures lasting durability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CRB676R5 | | Audio Output Mode | Single-Ended, Balanced | | Best Sellers Rank | #34,243 in Electronics ( See Top 100 in Electronics ) #69 in Headphone Amps | | Brand | Fosi Audio | | Brand Name | Fosi Audio | | Compatible Devices | Laptop, Computer, CD player, TV, Projector | | Customer Reviews | 4.6 out of 5 stars 376 Reviews | | Interface | Optical, USB-C | | Interface Type | Optical, USB-C | | Item Weight | 350 g | | Manufacturer | Fosi Audio | | Material | Aluminum Alloy | | Material Type | Aluminum Alloy | | Model | SK02 | | Mounting Type | Tabletop/Desktop | | Number of Channels | 2 | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pins | 35 | | Part Number | SK02 | | Unit Count | 1 Count | | Warranty Description | 24 Month Manufacturer | ## Product Details - **Brand:** Fosi Audio - **Interface Type:** Optical, USB-C - **Mounting Type:** Tabletop/Desktop - **Number of Channels:** 2 - **Number of Pins:** 35 ## Images ![Fosi Audio SK02 DAC Headphone Amplifier & Preamp, Desktop Audio DAC with USB-C and Optical Input, 4.4mm Balanced & 3.5mm Headphone Output, Digital-to-Analog Converter for PC and Home Audio System - Image 1](https://m.media-amazon.com/images/I/514vFpzU+fL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Compact Desk DAC That Packs Real Power *by A***R on August 8, 2026* I picked up the Fosi Audio SK02 because my PC’s built-in audio was starting to feel limited, and I wanted a small desktop unit that could drive my headphones better while also handling optical input from my setup. The mix of USB-C, optical, 3.5mm, and 4.4mm balanced outputs looked practical for everyday use without taking up much space. Going in, I expected a clean-sounding DAC/amp that could push regular headphones and some planars without noise or strain, plus basic preamp use. It mostly delivered. The aluminum case feels solid and sits steady on the desk. The big volume knob is smooth, and the gain switch plus LEDs make it easy to see what’s going on. Plug in via USB-C or optical and it just works—no drivers needed on my end. Sound is neutral and clear. Bass stays tight, mids are open, and it has enough power on the balanced 4.4mm side to give harder-to-drive headphones some headroom. I use it for music and gaming, and the quieter background helps pick out details better than the motherboard jack. The line out also works fine if I want to feed a powered speaker or another amp. For daily desk use it’s handy—connect the PC or a TV via optical, switch headphones quickly, and keep the volume independent. Value feels solid for what you get in power and inputs at this price point. A few things keep it from being perfect. The treble can come across a bit linear or bright depending on the headphones. It always needs USB-C power, so it’s not fully portable. And there’s no app or fancy tuning options if you like tweaking on the fly. It met my main expectations for cleaner desktop audio and enough power without complications. Not the last word in refinement, but a practical step up from basic PC sound that does the job well. ### ⭐⭐⭐⭐⭐ Fosi DAC *by R***Z on August 25, 2026* Works great !! I connected it to my laptop via a USBc cable. I noticed an improvement in overall sound. I’m running it through a Fosi BT30D Pro. Makes for a cool, compact, and clean sounding desktop set up. I used Google to help with optimizing the processing settings. Would definitely buy again…. Well I would…. If I had another home office computer. ### ⭐⭐⭐⭐⭐ Excellent But Lacking One Important Feature For Me *by K***N on January 10, 2026* Although I returned this Fosi Audio SK02 DAC Amp Headphone Amplifier I am giving it 5 stars because for what it is and for it's price I think it's a good value and performed well for me while I was trying it out. One of the reasons I considered this product was because of the high headphone power output and inclusion of both single ended and balanced headphone outputs. The power was definitely sufficient to drive all the headphones I own (Sennheiser HD6XX, Sennheiser 560S, HiFiMan Edition XS, FiiO FT1, Grell OAE1) although I didn't try it with some vintage 600 Ohm headphones I own. However, I returned it because I really needed to be able to see the volume level that was set more clearly than what the small led light could indicate. That single light was too vague to know where in the scale the volume was set. I have opted to choose another product that has an led screen which can constant show the volume from 0 to 99 at all times. This may not be a consideration for other people however. I also liked the form factor and design which took up less space on my desktop than the other product I ended up selecting. So, in summary, I consider this a very good product that unfortunately just didn't meet my specific needs. If the lack of constant volume level indicator and led screen isn't an issue, then you would probably be happy with this DAC/Headphone Amp. ## Frequently Bought Together - Fosi Audio SK02 DAC Amp Headphone Amplifier Desktop USB C to AUX Digital to Analog Audio Converter Adapter Preamp Optical to 3.5mm 4.4mm Balanced Combo for Home Audio System - Fosi Audio SK01 Headphone Amplifier Equalizer Preamp with Bass Midrange Treble Tone Control and Loudness Compensation Portable Class A Analog Amp for Electric Guitar Instrument with 3.5mm 6.35mm Jacks --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ie/products/611044029-fosi-audio-sk02-dac-headphone-amplifier-and-preamp-desktop-audio](https://www.desertcart.ie/products/611044029-fosi-audio-sk02-dac-headphone-amplifier-and-preamp-desktop-audio) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-10-15*