--- product_id: 803629985 title: "DS3 USB-C DAC HiFi Amp Dongle, Portable Headphone Amplifier with 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced for PC/Phone/ PS5/ Switch Black" brand: "fosi audio" price: "€ 200.11" currency: EUR in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.sk/products/803629985-ds3-usb-c-dac-hifi-amp-dongle-portable-headphone-amplifier store_origin: SK region: Slovakia --- # XMOS 1.6GHz dual-core processor 220mW balanced output 7.1 spatial audio surround DS3 USB-C DAC HiFi Amp Dongle, Portable Headphone Amplifier with 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced for PC/Phone/ PS5/ Switch Black **Brand:** fosi audio **Price:** € 200.11 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate Every Note — Audiophile Power Meets Portable Perfection ## Quick Answers - **What is this?** DS3 USB-C DAC HiFi Amp Dongle, Portable Headphone Amplifier with 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced for PC/Phone/ PS5/ Switch Black by fosi audio - **How much does it cost?** € 200.11 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/803629985-ds3-usb-c-dac-hifi-amp-dongle-portable-headphone-amplifier) ## 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 - • **Future-Proof XMOS Power:** Battery-free, dual-core 1.6GHz processing ensures jitter-free, bit-perfect audio with firmware upgrades to stay cutting-edge. - • **Customizable Tone Control:** Fine-tune your sound with 8 digital filters and a 32-band hardware EQ via an intuitive web panel—no software compromises. - • **Sleek, Ultra-Light Design:** Crafted from aerospace aluminum and tempered glass, weighing just 16g for premium portability and style that matches your setup. - • **Audiophile-Grade Precision:** Experience ultra-clean, 32-bit/768kHz PCM & native DSD512 decoding with <0.0003% THD for crystal-clear sound. - • **Immersive 7.1 Spatial Audio:** Transform your gaming and media with hardware-backed 360° surround sound that pinpoints every detail. ## Overview The Fosi Audio DS3 is a portable USB-C DAC and headphone amplifier featuring the high-end ES9039Q2M chip and XMOS dual-core processor. It delivers pristine 32-bit/768kHz PCM and native DSD512 audio with ultra-low distortion and 220mW balanced output. Designed for gamers and audiophiles alike, it offers hardware-enhanced 7.1 spatial surround sound, advanced EQ customization, and a sleek, lightweight aerospace aluminum chassis. Compatible with phones, PCs, PS5, and Switch, the DS3 ensures reference-grade sound on the go without needing external power or drivers. ## Description Buy Fosi Audio DS3 USB-C DAC HiFi Amp Dongle, Portable Headphone Amplifier with 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced for PC/Phone/ PS5/ Switch Black: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Great but needs the equalizer - Having the ds1 and enjoying it with music, decided to try this ds3 in gaming mode. I got the black and its def lighter in weight probably because the back is tempered glass now. It does look good but is a fingerprint magnet. People say its hard to operate but its fairly easy. It has a 60 step volume. This has a fairly low 1.2mw or 2.2mw output based on which cable tyoe you use. Balanced cable should give you the 2.2mw output but didnt seem nearly double the volume. Maybe 1/3 louder. But tweaking volume on either pc or iphone and on dac dongle you can get it to pretty high volumes. I’m using senheiser hd620s headphones. Its easy to upgrade firmware from their dl area and they have a windows driver although not sure if you really need it as the manual says drivers arent needed for windows. Unfortunately i did not find the web based equalizer that seems like it came with older versions of the firmware. But without it heres how to operate it easily. Just plugging it in will show red led (music mode), i leave it in default filter mode 1. But holding volume + and - down you will see a light blueish flash, you are now in mode filter two. Do it again, it will flash again, now filter 3. You can do it all the way to filter 8 which you will see two flashes. To get back to filter 1 hold down the buttons again it will flash once and back to filter 1. If you forgot, just unplug from your source and it should reset to filter 1. Game mode, say on your pc, before plugging dongle in your usb c port, just hold down the + volume button and then plug in. Keep holding it till you see led turns a yellow green color and let go. This is standard game mode. Holding down - and + till light changes to bluish color for fos mode. Holding it down again toll it changes purple is 7.1 surround mode. All of above is normal gain mode. If you accidentally pressed volume - & + momentary in either music or gaming modes, it changes gain to a higher gain mode and i didn't need this or use it as normal gain was loud enough. Also whatever mode youre in, with high gain on, the led light now flashes that color be it red for music, it will now flashes red. Same with gaming, if fps mode blue, in higher gain mode it will flash blue. Now to how it sounds. Music as i said i only used the default and it was perfectly fine. Gaming normal mode was ok, seemed like it was similar to standard music mode. Fps mode i think i did hear sounds more relevant to where the sound source was like voices to the side, things moving left or right things like that. So its ok but its subtle. 7.1 mode is not echoey like some people say. It does have a more 3d like sound and enhances directional sounds but it def wasnt echoey. Explosions do get louder as it tries to simulate sound from a simulated 7.1 speaker setup. I think it makes games a little funner with the more dynamic sounds. Anyways great, but would be better if they can get the equalizer on their dl site. Review: Easy to use and creates a more detailed sound. - Works great and sounds fantastic paired with Sennheiser HD560S headphones. Amazing detail. ## Features - Audiophile-Grade DAC Architecture: Built around the ES9039Q2M, this USB-C dongle DAC/amp supports 32-bit/768 kHz PCM and native DSD512, delivering a ≥122 dB SNR and <0.0003% THD—while outputting 220 mW @ 32Ω balanced. Engineered for transparent, low-noise reproduction with efficient power draw, it pairs flawlessly with phones, PCs, and the Switch for reference-grade listening on the go. - XMOS-POWERED Dual-Core Processing: As the world’s first battery-free DAC/amp to integrate XMOS POWERED, DS3 runs a 1.6 GHz dual-core engine that fully unlocks the ES9039Q2M’s capabilities. This ensures bit-perfect, jitter-free audio streaming from source to decoder, with future firmware upgradability to keep performance evolving—no external power brick required. - Hardware-Backed Spatial Enhancement: A built-in Fosi algorithm transforms multichannel audio into an immersive 360° soundscape, while a dedicated positional cue enhances directional clarity—ideal for critical listening and content consumption on PC, PS5, or Switch. Plug-and-play, driver-free across all platforms. - Hi-Fi-Centric Dual Modes & Advanced EQ: Supports both UAC 1.0 and UAC 2.0 with independent volume memory. Fine-tune your sound with 8 selectable digital filters and a 32-band hardware-level PEQ—adjustable via an intuitive web-based control panel—delivering precise, phase-coherent customization without any sonic degradation. This is reference-grade tone shaping, not software emulation. - Reference Tuning & Dynamic Fidelity: Engineered for highly neutral, faithful reproduction with exceptional dynamic range and transient response, the DS3 stays true to the original recording. Whether driving sensitive IEMs or demanding full-size headphones, it reveals micro-details without artificial coloration—perfect for mix reference and critical listening. - Refined Industrial Design: CNC-milled aerospace aluminum and a tempered-glass skylight keep the portable dongle at just 16 g, offering a premium tactile feel while showcasing the precision-laid internal circuitry. Available in Galaxy and Obsidian finishes, matching the IM4 headphones for a cohesive aesthetic. - Important Note: The DS3 is a dedicated Hi-Fi DAC/amp—it does not include a built-in microphone, ensuring a pure, unadulterated audio path with no signal cross-contamination. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0G6KJQV28 | | Audio Output Mode | Surround Sound, 3D Spatial Audio | | Best Sellers Rank | #40,387 in Electronics ( See Top 100 in Electronics ) #69 in Headphone Amps | | Brand | Fosi Audio | | Brand Name | Fosi Audio | | Compatible Devices | phones, PCs, PS5, Switch | | Customer Reviews | 3.8 out of 5 stars 76 Reviews | | Included Components | User Manual | | Interface | USB | | Interface Type | USB | | Item Weight | 16 g | | Manufacturer | Fosi Audio | | Model | DS3-Black | | Mounting Type | Freestanding | | Number of Channels | 7 | | Unit Count | 1 Count | | Warranty Description | 24months | ## Product Details - **Audio Output Mode:** Surround Sound, 3D Spatial Audio - **Brand:** Fosi Audio - **Interface Type:** USB - **Mounting Type:** Freestanding - **Number of Channels:** 7 ## Images ![DS3 USB-C DAC HiFi Amp Dongle, Portable Headphone Amplifier with 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced for PC/Phone/ PS5/ Switch Black - Image 1](https://m.media-amazon.com/images/I/61oEwSHf6DL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: What accessories are included with the DS3?** A: The box contains the DS3 dongle DAC/amp, a USB-C cable, a USB-C to USB-A adapter, a quick-start guide, and the user manual—everything you need for plug-and-play listening on phones, PCs, PS5 or Switch. **Q: How do I switch gaming sound effects on the DS3?** A: In UAC 1.0 gaming mode, long-press both Volume+ and Volume- buttons to cycle through No Effect(yellow) / FPS Effect(blue) / 7.1 Spatial Audio Effect(purple); 7.1 creates a 360° immersive soundstage-no drivers needed. **Q: Can I change digital filters on the DS3?** A: Yes—long-press both volume keys in UAC 2.0. Filters 1–7 blink once, Filter 8 blinks twice; pick the curve that best suits your headphones and music. **Q: How do I change UAC modes on the DS3?** A: Plug in to default UAC 2.0 (red LED). Hold any volume key while reconnecting for UAC 1.0 (yellow). Swap back by unplugging and re-plugging the USB-C cable. **Q: How do I toggle high/low gain on the DS3?** A: Short-press both volume keys together. In UAC 2.0, red flash = high gain, solid red = low. In UAC 1.0, watch the last color: flash = high, steady = low—yellow for no effect, blue for FPS, purple for 7.1. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great but needs the equalizer *by M***O on July 1, 2026* Having the ds1 and enjoying it with music, decided to try this ds3 in gaming mode. I got the black and its def lighter in weight probably because the back is tempered glass now. It does look good but is a fingerprint magnet. People say its hard to operate but its fairly easy. It has a 60 step volume. This has a fairly low 1.2mw or 2.2mw output based on which cable tyoe you use. Balanced cable should give you the 2.2mw output but didnt seem nearly double the volume. Maybe 1/3 louder. But tweaking volume on either pc or iphone and on dac dongle you can get it to pretty high volumes. I’m using senheiser hd620s headphones. Its easy to upgrade firmware from their dl area and they have a windows driver although not sure if you really need it as the manual says drivers arent needed for windows. Unfortunately i did not find the web based equalizer that seems like it came with older versions of the firmware. But without it heres how to operate it easily. Just plugging it in will show red led (music mode), i leave it in default filter mode 1. But holding volume + and - down you will see a light blueish flash, you are now in mode filter two. Do it again, it will flash again, now filter 3. You can do it all the way to filter 8 which you will see two flashes. To get back to filter 1 hold down the buttons again it will flash once and back to filter 1. If you forgot, just unplug from your source and it should reset to filter 1. Game mode, say on your pc, before plugging dongle in your usb c port, just hold down the + volume button and then plug in. Keep holding it till you see led turns a yellow green color and let go. This is standard game mode. Holding down - and + till light changes to bluish color for fos mode. Holding it down again toll it changes purple is 7.1 surround mode. All of above is normal gain mode. If you accidentally pressed volume - & + momentary in either music or gaming modes, it changes gain to a higher gain mode and i didn't need this or use it as normal gain was loud enough. Also whatever mode youre in, with high gain on, the led light now flashes that color be it red for music, it will now flashes red. Same with gaming, if fps mode blue, in higher gain mode it will flash blue. Now to how it sounds. Music as i said i only used the default and it was perfectly fine. Gaming normal mode was ok, seemed like it was similar to standard music mode. Fps mode i think i did hear sounds more relevant to where the sound source was like voices to the side, things moving left or right things like that. So its ok but its subtle. 7.1 mode is not echoey like some people say. It does have a more 3d like sound and enhances directional sounds but it def wasnt echoey. Explosions do get louder as it tries to simulate sound from a simulated 7.1 speaker setup. I think it makes games a little funner with the more dynamic sounds. Anyways great, but would be better if they can get the equalizer on their dl site. ### ⭐⭐⭐⭐⭐ Easy to use and creates a more detailed sound. *by R***P on May 1, 2026* Works great and sounds fantastic paired with Sennheiser HD560S headphones. Amazing detail. ### ⭐ Dull and lifeless *by H***. on May 7, 2026* This thing... Wow. Where do I start? I purchased some highly rated Sennheiser headphones along with this one, in expectations that I would hear something incredible, but I found the opposite. It removes all life from all music and makes it dull and lifeless. After weeks of testing, my desktop speakers also confirm this. I would give it zero stars, but that's not an option. What is FOSI attempting with this? They are hyping it. Now it is sitting in my drawer, waiting for another day of testing... In which I know it will fail... Update: After a couple of months, I finally found something that works a little bit with this thing: some crappy Sony earbuds. My expensive AKG earbuds don't work with them as well. Even then, the Sony don't present anything remarkable. Just barely above average. Still one star for the FOSI DS3. --- ## 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.sk/products/803629985-ds3-usb-c-dac-hifi-amp-dongle-portable-headphone-amplifier](https://www.desertcart.sk/products/803629985-ds3-usb-c-dac-hifi-amp-dongle-portable-headphone-amplifier) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-08-10*