Fosi Audio Q6
- Fosi Audio
Fosi Audio Q6
- Fosi Audio
$105.48
- Authorized Dealer · Tech Support · 30-Day Returns
Why it stands out
Best for
Not ideal for
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Setup guide
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What you should know
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Frequently asked questions
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Official product information provided by Fosi Audio
The following product descriptions, specifications and images are provided by the manufacturer.
Fosi Audio Q6 is a compact fixed-output desktop DAC for converting USB-C, optical or coaxial digital sources to RCA analog audio and sub-out.
Its AK4493S and XMOS XU316 chipset supports PCM 32-bit/768kHz and DSD512 over USB while delivering 121dB SNR for a clean stereo system upgrade.
Why it stands out
AKM desktop conversion
The AK4493S DAC and premium supporting chipset target high-resolution, low-distortion stereo playback.
High-resolution USB audio
USB supports PCM up to 32-bit/768kHz and native DSD512.
Three digital source inputs
USB-C, optical and coaxial connect computers, TVs, streamers and CD transports.
RCA plus sub-out
Analog RCA and sub-out simplify stereo or 2.1 integration.
Best for
- Digital streamers and CD transports
- Computer-based HiFi systems
- TV optical PCM into an amplifier
- Fixed-output DAC systems with downstream volume control
Not ideal for
- Headphone listening without a separate headphone amplifier
- Users needing built-in volume control or preamplification
- Analog sources such as turntables
EMiUZEK Buying Notes
- Q6 is a fixed-output DAC, not a preamplifier; control volume downstream.
- It has no headphone output and requires an amplifier, headphone amp or powered speakers.
- The sub-out is line level and requires a powered subwoofer.
Frequently asked questions
Can Q6 drive headphones?
No. Add a separate headphone amplifier.
Does it control volume?
No. It is a fixed-output DAC, so use an amplifier, preamp or powered-speaker volume control.
Can it connect to a turntable?
No. It accepts digital inputs only.
Can it connect to a TV?
Yes, by optical or coaxial PCM audio.
What does sub-out connect to?
A powered subwoofer with a compatible line input.
Does USB support DSD?
Yes, up to DSD512 from a compatible source and playback setup.
HOW TO CONNECT
Streamer system
Source: Digital streamer
Connection: Optical or coaxial
Output: RCA
Target: Integrated amplifier
Note: Control volume at the amplifier.
Computer HiFi
Source: PC, Mac or tablet
Connection: USB-C audio
Output: RCA
Target: Amplifier or powered speakers
Note: Use compatible USB playback settings.
2.1 system
Source: Digital source
Connection: USB, optical or coaxial
Output: RCA + sub-out
Target: Amplifier + powered subwoofer
Note: Q6 output is fixed; manage levels downstream.
Technical Specifications
Audio performance
| Feature | Specification |
|---|---|
| DAC / USB chipset | AK4493S / XMOS XU316 |
| USB maximum | PCM 32-bit / 768kHz; DSD512 |
| Optical / coaxial | Up to 32-bit / 192kHz |
| SNR / Dynamic range | ≥121dB / 121dB |
| THD | <0.00012% |
Connections and power
| Feature | Specification |
|---|---|
| Inputs | USB-C, optical, coaxial |
| Outputs | RCA, sub-out |
| Other components | OPA1612, NE5532DR |
| Power supply | 5V / 2A |
| Volume control | No; fixed output |
Recommended System Setup
| Setup | Connection |
|---|---|
| Streamer system | Streamer → Q6 → Integrated amplifier |
| Computer system | Computer → Q6 → Powered speakers |
| 2.1 system | Digital source → Q6 → Amplifier + powered subwoofer |
Additional Product Content
Fosi Audio product comparison
Compare the models by the differences that most affect system matching and everyday use.
| Feature | Q6 | Q4 | ZD3 |
|---|---|---|---|
| Product position | Fixed-output stereo DAC | DAC + headphone amp / volume control | Balanced DAC / preamp |
| DAC chip | AK4493S | 97220-based chipset | ES9039Q2M |
| USB maximum | 32-bit / 768kHz, DSD512 | 24-bit / 96kHz | 32-bit / 768kHz, DSD512 |
| Other inputs | Optical, coaxial | Optical, coaxial | HDMI ARC, optical, coaxial, Bluetooth |
| Analog outputs | RCA, sub-out | RCA | RCA, XLR |
| Headphone output | No | 3.5mm | No |
| Volume control | No | Yes | Yes with bypass |
| Balanced output | No | No | Yes, XLR |
| SNR | ≥121dB | ≥105dB | ≥126dB |
| Best use | Simple high-performance DAC | Entry headphones and desktop | Flexible balanced TV/HiFi hub |
What's in the box, manuals and downloads
Shipping, warranty and returns
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