Fosi Audio P3vsMusician Monoceros
A detailed side-by-side comparison of the Fosi Audio P3 and Musician Monoceros — two popular preamps in the Chinese HiFi space.
Specifications
Spec
Fosi Audio P3
Musician Monoceros
Tubes
5654W × 2 (Replaceable with 6J1, 6AK5, EF95)
—
Topology
Hybrid Tube Preamp
Class A Discrete
Inputs
RCA, Bluetooth 5.1
2 × XLR, 1 × RCA
Outputs
RCA, 3.5mm Headphone, 3.5mm Aux
XLR, RCA
Features
Bass/Treble Tone Controls, Reset Button for Tone Defeat
—
Volume
—
R-2R Resistor Ladder (60 steps)
Weight
—
7 kg
Remote Control
✗
✓
Tube Stage
✓
✗
Phono Stage
✗
✗
Headphone Amp
✓
✗
Price (estimated)
Price
~$79
~$1169
Difference
~$1090.00 cheaper (Fosi Audio P3)
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.
Musician Monoceros
- ⚠Volume relays make a clicking sound when adjusting level (normal for R2R but can be surprising).
- ⚠Runs warm due to Class A operation.
- ⚠Display is retro LED style which some find outdated compared to OLED.
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