Fosi Audio P3vsFosi Audio SK01
A detailed side-by-side comparison of the Fosi Audio P3 and Fosi Audio SK01 — two popular preamps in the Chinese HiFi space.
Specifications
Spec
Fosi Audio P3
Fosi Audio SK01
Tubes
5654W × 2 (Replaceable with 6J1, 6AK5, EF95)
—
Topology
Hybrid Tube Preamp
Solid State Op-Amp
Inputs
RCA, Bluetooth 5.1
3.5mm Line In
Outputs
RCA, 3.5mm Headphone, 3.5mm Aux
3.5mm Line Out, 3.5mm/6.35mm Headphone
Features
Bass/Treble Tone Controls, Reset Button for Tone Defeat
Hardware Loudness Switch, 3-Band EQ, High/Low Gain
Remote Control
✗
✗
Tube Stage
✓
✗
Phono Stage
✗
✗
Headphone Amp
✓
✓
Price (estimated)
Price
~$79
~$70
Difference
~$9.00 cheaper (Fosi Audio SK01)
Things to Know
Fosi Audio P3
- ⚠Bluetooth input is always active/discoverable if not connected.
- ⚠Tube socket is tight; swapping tubes requires care to avoid bending pins.
- ⚠No remote control.
Fosi Audio SK01
- ⚠Built-in battery is unnecessary for a desktop unit and will eventually degrade/fail.
- ⚠Input is limited to a single 3.5mm jack (no RCA inputs without adapter).
- ⚠Form factor is tall and narrow, making it easy to tip over when heavy cables are attached.
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