Fosi Audio K5 ProvsSMSL SU-1
A detailed side-by-side comparison of the Fosi Audio K5 Pro and SMSL SU-1 — two popular dacs in the Chinese HiFi space.
Specifications
Spec
Fosi Audio K5 Pro
SMSL SU-1
Chipset
Texas Instruments NE5532 (Op-Amp)
AKM AK4493S
Inputs
USB-C, Optical, Coaxial, 3.5mm Mic In
USB-C, Optical, Coaxial
Outputs
6.35mm Headphone, RCA Line Out
RCA
Features
Microphone Input, Tone Controls, PS5 Compatible
MQA Decoding, Bus Powered, Metal Chassis
PCM
—
32-bit / 768kHz
Remote Control
✗
✗
Tube Stage
✗
✗
Headphone Amp
✓
✗
Price (estimated)
Price
~$54
~$85
Difference
~$31.00 cheaper (Fosi Audio K5 Pro)
Things to Know
Fosi Audio K5 Pro
- ⚠Microphone input has no gain control; volume depends entirely on the OS/Console settings.
- ⚠The internal DAC is limited to 24-bit/96kHz, which is lower than most audiophile competitors.
- ⚠Tone controls can introduce distortion if cranked to maximum.
SMSL SU-1
- ⚠No remote control or screen; input switching is a simple button on the front.
- ⚠No balanced outputs (RCA only).
- ⚠Lightweight chassis can easily be pulled off a desk by heavy cables.
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