Fosi Audio DS3
- Fosi Audio
Fosi Audio DS3
- Fosi Audio
$80.69
- Authorized Dealer · Tech Support · 30-Day Returns
Why it stands out
Best for
Not ideal for
Shop with confidence
Why buy from EMiUZEK
We help you choose, connect and maintain your system—not just ship a box.
- Authentic products
- Compatibility guidance
- Fast tracked shipping
- Firmware and driver support
- Clear warranty process
- Responsive after-sales help
Setup guide
How to connect
What you should know
EMiUZEK buying notes
Frequently asked questions
View full technical specifications
Official product information provided by Fosi Audio
The following product descriptions, specifications and images are provided by the manufacturer.
Fosi Audio DS3 is a portable USB DAC and headphone amplifier designed for music, gaming and multichannel spatial-audio playback.
Hardware 7.1 processing, PCM 768kHz/DSD512 decoding and a 220mW output combine immersive gaming modes with high-resolution wired headphone listening.
Why it stands out
Hardware-level 7.1 spatial audio
Processes compatible multichannel game audio into an expansive headphone presentation without PC software.
Dedicated gaming sound modes
Switch between standard, FPS and 7.1 spatial effects in UAC 1.0 mode.
High-resolution music playback
Supports PCM up to 32-bit/768kHz and native DSD512.
Compact high-output design
Provides up to 220mW at 32Ω while weighing only 16g.
Best for
- PC and console gaming with wired headphones
- Portable high-resolution music playback
- Users wanting selectable spatial-audio effects
- 16–300Ω wired headphones
Not ideal for
- Bluetooth or wireless playback
- Headsets requiring microphone passthrough
- Users wanting speaker amplification
EMiUZEK Buying Notes
- 7.1 spatial processing depends on the source game or device providing compatible multichannel audio.
- Gaming effects are selected in UAC 1.0 mode; music filters are handled in UAC 2.0 mode.
- DS3 has no built-in battery and draws power from the connected source.
Frequently asked questions
Does DS3 require a driver?
No PC software or driver is required for its core operation.
How is 7.1 mode selected?
In UAC 1.0 mode, hold both volume buttons to cycle through the available sound effects.
Can it play ordinary stereo music?
Yes. Spatial effects are optional and standard stereo playback is supported.
What is the maximum output power?
The official specification lists 220mW at 32Ω.
Does it support DSD?
Yes, up to native DSD512.
Can gain be changed?
Yes. Press both volume buttons together to switch between low and high gain.
HOW TO CONNECT
PC gaming
Source icon: computer
Source: Gaming PC
Connection: USB audio / compatible multichannel output
Output connection: Headphone output
Target icon: headphones
Output: Wired gaming headphones
Console gaming
Source icon: device
Source: Compatible console
Connection: USB audio in UAC 1.0 mode
Output connection: Headphone output
Target icon: headphones
Output: Wired headphones
Portable music
Source icon: phone
Source: USB-C phone / tablet
Connection: USB-C audio
Output connection: Headphone output
Target icon: headphones
Output: Wired headphones or IEMs
Technical Specifications
Audio and processing
| Feature | Specification |
|---|---|
| Product type | Portable USB DAC and headphone amplifier |
| Maximum PCM | 32-bit / 768kHz |
| DSD | Native DSD512 |
| Spatial processing | Hardware 7.1; FPS effect; standard mode |
Output and physical
| Feature | Specification |
|---|---|
| Maximum output | 220mW @ 32Ω |
| Recommended impedance | 16–300Ω |
| Dimensions | 55 × 20 × 11mm |
| Weight | 16g |
Additional Product Content
Comparison: Which Fosi Audio model is right for you?
| Model | DS1 | DS2 2024 | DS3 |
|---|---|---|---|
| Primary use | Portable Hi-Res music | Portable Hi-Res music | Music and gaming spatial audio |
| DAC / processing | ESS ES9038Q2M | Dual CS43131 | Hardware 7.1 processing |
| Maximum PCM | 32-bit / 768kHz | 32-bit / 384kHz | 32-bit / 768kHz |
| Maximum DSD | DSD512 | DSD256 | DSD512 |
| Maximum stated output | 220mW @ 32Ω balanced | 510mW @ 32Ω balanced (manual) | 220mW @ 32Ω |
| Best use | Compact ESS dongle | Higher-power balanced portable setup | Gaming effects and spatial audio |
What's in the box, manuals and downloads
Shipping, warranty and returns
Worldwide Tracked Shipping
We provide tracked international shipping with delivery options and estimated delivery times shown during checkout.
Official Warranty Support
All products sold by EMIUZEK are genuine products with manufacturer warranty support.
Our HiFi specialists provide assistance with compatibility, setup, and technical questions.
Easy Returns
Eligible returns are available according to our return policy.
Please contact EMIUZEK before returning any product so we can provide assistance.