Fosi Audio K7
- Fosi Audio
Fosi Audio K7
- Fosi Audio
$111.48
- 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
EMiUZEK buying notes
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 K7 is a fully balanced desktop DAC and headphone amplifier designed for HiFi listening, gaming and communication.
AK4493SEQ conversion, USB/optical/coaxial/Bluetooth inputs, microphone support and powerful 3.5mm and 4.4mm outputs make it a comprehensive desktop audio hub.
Why it stands out
Fully balanced high-output design
The 4.4mm output provides at least 2.1W + 2.1W at 32Ω for compatible headphones.
Audiophile digital architecture
Combines an AK4493SEQ DAC, XMOS XU208 USB processor and TPA6120 headphone amplification.
Gaming and microphone features
A microphone input with noise reduction and physical EQ controls support gaming and online communication.
Extensive source connectivity
Accepts USB-C, optical, coaxial and Bluetooth aptX HD/LL sources.
Best for
- Desktop HiFi headphone systems
- PC and console gaming
- TVs and projectors with digital output
- Powered speakers or amplifiers using RCA
Not ideal for
- Directly driving passive speakers
- Portable battery-powered use
- Users requiring HDMI ARC
EMiUZEK Buying Notes
- The 4.4mm output requires correctly wired balanced headphones; do not use an unsafe single-ended adapter.
- RCA is a line-level output for powered speakers or amplifiers, not passive speakers.
- Microphone compatibility and console operation depend on the selected input mode and system settings.
Frequently asked questions
What is the maximum headphone output?
The balanced output is rated at ≥2.1W + 2.1W at 32Ω; the 3.5mm output is ≥600mW + 600mW at 32Ω.
Does K7 support Bluetooth?
Yes, including aptX HD and aptX LL.
Can it connect to a TV?
Yes, through compatible optical or coaxial PCM output.
Can it power passive speakers?
No. Use its RCA output with powered speakers or a power amplifier.
Does it support microphones?
Yes, through the 3.5mm microphone input and compatible system setup.
What is the maximum USB resolution?
PCM up to 32-bit/384kHz and DSD256.
HOW TO CONNECT
PC gaming and communication
Source icon: computer
Source: PC / Mac
Connection: USB-C audio + microphone
Output connection: 3.5mm or 4.4mm headphone output
Target icon: headphones
Output: Gaming headset / headphones
TV headphone system
Source icon: tv
Source: TV / projector
Connection: Optical or coaxial PCM
Output connection: Headphone output
Target icon: headphones
Output: Wired headphones
Powered speaker system
Source icon: streamer
Source: PC / streamer / Bluetooth device
Connection: USB, digital or Bluetooth
Output connection: RCA line output
Target icon: speakers
Output: Powered speakers or amplifier
Technical Specifications
Digital architecture
| Feature | Specification |
|---|---|
| DAC | AKM AK4493SEQ |
| USB processor | XMOS XU208 |
| Headphone amplifier | TPA6120 |
| Maximum resolution | PCM 32-bit / 384kHz; DSD256 |
| Inputs | USB-C; optical; coaxial; Bluetooth; 3.5mm microphone |
Outputs and performance
| Feature | Specification |
|---|---|
| Outputs | 3.5mm single-ended; 4.4mm balanced; RCA |
| 3.5mm rated output | ≥600mW + 600mW @ 32Ω |
| 4.4mm rated output | ≥2.1W + 2.1W @ 32Ω |
| SNR | ≥121dB |
| THD+N | ≤0.0002% |
| Power input | DC 12V |
Additional Product Content
Comparison: Which Fosi Audio model is right for you?
| Model | K5 Pro | Q4 | K7 |
|---|---|---|---|
| Primary use | Gaming DAC with microphone | Simple desktop DAC/headphone amp | Premium HiFi and gaming DAC |
| Inputs | USB, optical, coaxial, microphone | USB, optical, coaxial | USB, optical, coaxial, Bluetooth, microphone |
| Headphone output | 3.5mm | 3.5mm | 3.5mm and 4.4mm balanced |
| Maximum USB playback | 24-bit / 96kHz | 24-bit / 96kHz | 32-bit / 384kHz; DSD256 |
| Best use | Budget gaming communication | Basic music and TV upgrade | High-output balanced desktop system |
What's in the box, manuals and downloads
Shipping, warranty and returns
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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.