---
product_id: 803629985
title: "Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch"
brand: "fosi audio"
price: "€ 199.79"
currency: EUR
in_stock: true
reviews_count: 1
category: "Fosi Audio"
url: https://www.desertcart.gr/products/803629985-fosi-audio-ds3-usb-c-dac-amp-dongle-portable-headphone
store_origin: GR
region: Greece
---

# 220mW balanced power 32bit/768kHz PCM & DSD512 7.1 spatial audio w/ FPS mode Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch

**Brand:** fosi audio
**Price:** € 199.79
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game—where audiophile clarity meets next-level gaming immersion!

## Quick Answers

- **What is this?** Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch by fosi audio
- **How much does it cost?** € 199.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/803629985-fosi-audio-ds3-usb-c-dac-amp-dongle-portable-headphone)

## 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

- • **Hi-Res Audio Mastery:** Supports ultra-high-res 32bit/768kHz PCM & native DSD512 for pristine, lossless playback.
- • **Sleek, Portable Luxury:** CNC-milled aerospace aluminum and tempered glass design weighs just 16g—carry premium style everywhere.
- • **Plug-and-Play Versatility:** Seamlessly compatible with PC, phone, PS5, and Switch—no apps or batteries required for instant upgrade.
- • **Immersive 7.1 Gaming Audio:** Experience pinpoint positional accuracy with built-in 7.1 spatial sound and FPS mode—no drivers needed.
- • **Audiophile-Grade Powerhouse:** Unleash crystal-clear sound with 220mW balanced output—feel every note and beat.

## Overview

The Fosi Audio DS3 is a compact, USB-C DAC/amp featuring the high-performance ES9039Q2M DAC and XMOS dual-core processor. It delivers powerful 220mW balanced output, supports ultra-high-res 32bit/768kHz PCM and DSD512 formats, and transforms game audio into immersive 7.1 spatial sound with a dedicated FPS mode. Crafted from aerospace aluminum with a tempered glass window, it’s a stylish, portable solution for audiophiles and gamers alike, compatible with PC, phones, PS5, and Switch—all without needing batteries or drivers.

## Description

Buy Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great sound in a tiny package – surprisingly powerful - I’m someone who really feels music. I’m not obsessed with specs for the sake of it—I just want gear that makes music come alive. After several weeks testing the Fosi DS3 with music, gaming, and measurements, here’s my honest experience. Build & First Impressions The DS3 is a very compact USB-C DAC/amp with a CNC aluminum body and a small glass window. It feels solid and looks surprisingly classy. I actually brought it on a work trip, and multiple coworkers asked about it because of the design—even though it’s technically marketed as a gaming device. My Testing Setup Sources • Asus ROG Ally X • iPhone 16 Pro Headphones • Sennheiser HD600 (main testing) • Meze Alba Comparison gear • Apple dongle • Fosi K7 • Qudelix 5K • Moondrop Dawn 2 Sound Quality Compared to the Apple dongle, the DS3 delivers noticeably more power and clarity. With my HD600, I’d estimate around a 20% improvement in separation, detail, and overall musical engagement during repeated back-to-back listening sessions. Volume is also slightly stronger—about 8% louder in my measurements. Tracks like: • Instant Crush – Daft Punk • Smells Like Teen Spirit – Nirvana • No More Tears – Ozzy Osbourne all sounded cleaner and more controlled, especially in busy passages. Gaming Performance I tested it with: • Forza Horizon • Elden Ring • Death Stranding • Outer Wilds • Genshin Impact Games that support spatial audio really benefit. In Forza Horizon and Outer Wilds, the sense of space and environmental detail improved noticeably compared to standard outputs. There’s also a FPS mode designed to emphasize directional cues like footsteps. Power & Compatibility The DS3 uses an ESS ES9039Q2M DAC with an XMOS XU316 USB processor, supporting up to 32-bit/768 kHz PCM and DSD512. It includes both 3.5 mm and 4.4 mm balanced outputs, and the balanced port is a great addition for portable gear. It’s powerful enough to drive headphones like the HD600, which surprised me for a device this small. Battery Use (iPhone) Battery drain compared to the Apple dongle was basically negligible in real use. Comparisons • Qudelix 5K: more features and Bluetooth, but the DS3 has noticeably more output power and simpler plug-and-play use. • Moondrop Dawn 2: good for IEMs, but the DS3 offers more power, more features, and balanced output. Pros • Very compact and portable • Noticeable sound improvement over phone/laptop outputs • 4.4 mm balanced output • Plug-and-play with no app required Cons • Included USB-C cable is short • No screen (not a big issue, but could be nice) Final Thoughts For anyone who loves music and also games, but doesn’t want to carry a full desktop setup, the Fosi DS3 hits a great balance. It’s small, powerful, and genuinely improves the listening experience. After trying to make bigger DACs portable on trips, the DS3 ended up replacing them for me.

## Features

- Audiophile-Grade DAC: This USB-C dongle DAC/amp pairs ES9039Q2M with 32bit/768 kHz PCM & native DSD512, delivering ≥122 dB SNR & <0.0003 % THD while pushing 220 mW@32Ω balanced—high performance meets low power draw for phones, PCs, and Switch
- XMOS POWERED Processor: As the world's first DAC/amp to integrate XMOS POWERED in a battery-free design, DS3 runs a dual-core 1.6 GHz engine that fully unleashes the ES9039Q2M DAC, ensuring rock-stable, lossless audio streaming from source to decoder
- Hardware Spatial Audio: Fosi's built-in algorithm turns 7.1-channel game audio into 360° surround, while a dedicated FPS effect pinpoints footsteps, reloads, and gunfire for instant positional accuracy on PC, PS5, or Switch—no drivers needed
- HiFi & Gaming Dual Modes: Supports UAC 1.0 and UAC 2.0, with volume memory available in both modes. Eight filter options and an 8-band hardware-level PEQ - adjustable via a web-based control panel - allow precise sound customization without degradation
- Family Design & Colors: CNC-milled aerospace aluminum and a tempered-glass skylight pare the portable dongle dac down to 16 g while flaunting the internal circuit board, plus DS3 comes in galaxy and obsidian to match the IM4 headphones

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0G6KJQV28 |
| Best Sellers Rank | #29,413 in Electronics ( See Top 100 in Electronics ) #157 in Audio Component Amplifiers |
| Brand Name | Fosi Audio |
| Connectivity Technology | Wired |
| Customer Reviews | 5.0 5.0 out of 5 stars (1) |
| Date First Available | December 12, 2025 |
| Item Weight | 0.564 ounces |
| Item model number | DS3-Black |
| Model number | DS3-Black |
| Package Dimensions | 5.04 x 3.54 x 1.02 inches |

## Images

![Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch - Image 1](https://m.media-amazon.com/images/I/61oEwSHf6DL.jpg)
![Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch - Image 2](https://m.media-amazon.com/images/I/61gspXwERaL.jpg)
![Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch - Image 3](https://m.media-amazon.com/images/I/71Y97qMy7dL.jpg)
![Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch - Image 4](https://m.media-amazon.com/images/I/71VGmIt8oPL.jpg)
![Fosi Audio DS3 USB-C DAC Amp Dongle, Portable Headphone Amplifier with Gaming 7.1 Spatial Audio, ES9039Q2M XMOS Powered, DSD512, 3.5mm Single 4.4mm Balanced, HiFi Amps for PC/Phone/ PS5/ Switch - Image 5](https://m.media-amazon.com/images/I/71vWgMR2I2L.jpg)

## 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 sound in a tiny package – surprisingly powerful
*by L***O on March 5, 2026*

I’m someone who really feels music. I’m not obsessed with specs for the sake of it—I just want gear that makes music come alive. After several weeks testing the Fosi DS3 with music, gaming, and measurements, here’s my honest experience. Build & First Impressions The DS3 is a very compact USB-C DAC/amp with a CNC aluminum body and a small glass window. It feels solid and looks surprisingly classy. I actually brought it on a work trip, and multiple coworkers asked about it because of the design—even though it’s technically marketed as a gaming device. My Testing Setup Sources • Asus ROG Ally X • iPhone 16 Pro Headphones • Sennheiser HD600 (main testing) • Meze Alba Comparison gear • Apple dongle • Fosi K7 • Qudelix 5K • Moondrop Dawn 2 Sound Quality Compared to the Apple dongle, the DS3 delivers noticeably more power and clarity. With my HD600, I’d estimate around a 20% improvement in separation, detail, and overall musical engagement during repeated back-to-back listening sessions. Volume is also slightly stronger—about 8% louder in my measurements. Tracks like: • Instant Crush – Daft Punk • Smells Like Teen Spirit – Nirvana • No More Tears – Ozzy Osbourne all sounded cleaner and more controlled, especially in busy passages. Gaming Performance I tested it with: • Forza Horizon • Elden Ring • Death Stranding • Outer Wilds • Genshin Impact Games that support spatial audio really benefit. In Forza Horizon and Outer Wilds, the sense of space and environmental detail improved noticeably compared to standard outputs. There’s also a FPS mode designed to emphasize directional cues like footsteps. Power & Compatibility The DS3 uses an ESS ES9039Q2M DAC with an XMOS XU316 USB processor, supporting up to 32-bit/768 kHz PCM and DSD512. It includes both 3.5 mm and 4.4 mm balanced outputs, and the balanced port is a great addition for portable gear. It’s powerful enough to drive headphones like the HD600, which surprised me for a device this small. Battery Use (iPhone) Battery drain compared to the Apple dongle was basically negligible in real use. Comparisons • Qudelix 5K: more features and Bluetooth, but the DS3 has noticeably more output power and simpler plug-and-play use. • Moondrop Dawn 2: good for IEMs, but the DS3 offers more power, more features, and balanced output. Pros • Very compact and portable • Noticeable sound improvement over phone/laptop outputs • 4.4 mm balanced output • Plug-and-play with no app required Cons • Included USB-C cable is short • No screen (not a big issue, but could be nice) Final Thoughts For anyone who loves music and also games, but doesn’t want to carry a full desktop setup, the Fosi DS3 hits a great balance. It’s small, powerful, and genuinely improves the listening experience. After trying to make bigger DACs portable on trips, the DS3 ended up replacing them for me.

---

## 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.gr/products/803629985-fosi-audio-ds3-usb-c-dac-amp-dongle-portable-headphone](https://www.desertcart.gr/products/803629985-fosi-audio-ds3-usb-c-dac-amp-dongle-portable-headphone)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-09*