Fosi Audio TB10D (Upgraded)vsFosi Audio V3 Mono
A detailed side-by-side comparison of the Fosi Audio TB10D (Upgraded) and Fosi Audio V3 Mono — two popular amplifiers in the Chinese HiFi space.
Specifications
Spec
Fosi Audio TB10D (Upgraded)
Fosi Audio V3 Mono
Class
D
D
Chipset
TI TPA3255
TI TPA3255 (with PFFB)
Power
2 × 300W (Max) / ~100W Clean @ 4Ω
240W @ 4Ω (48V/5A supply)
Inputs
RCA
RCA, XLR / ¼” TRS
Features
Bass and Treble Tone Controls
Auto-Standby, 12V Trigger, Gain Switch (25dB/31dB)
Topology
—
Monoblock
THD / SINAD
—
-120 dB (SINAD via XLR)
Remote Control
✗
✗
Tube Stage
✗
✗
Price (estimated)
Price
~$70
~$131
Difference
~$61.00 cheaper (Fosi Audio TB10D (Upgraded))
Things to Know
Fosi Audio TB10D (Upgraded)
- ⚠Volume control is logarithmic but very sensitive; gets loud at the 9 o'clock position.
- ⚠Tone controls lack a center detent, making it hard to know when you are truly 'flat'.
- ⚠DC input spark is common when plugging in the power supply (connect to amp first, then wall).
Fosi Audio V3 Mono
- ⚠Chassis gets significantly warm due to the compact thermal design coupled with high power density.
- ⚠Auto-standby feature produces a mechanical 'click' that some users find audible in quiet rooms.
- ⚠Requires two separate power bricks (or a specialized splitter) for a stereo pair, adding cable clutter.
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