Fosi Audio TB10D (Upgraded)vsTopping PA7 Plus
A detailed side-by-side comparison of the Fosi Audio TB10D (Upgraded) and Topping PA7 Plus — two popular amplifiers in the Chinese HiFi space.
Specifications
Spec
Fosi Audio TB10D (Upgraded)
Topping PA7 Plus
Class
D
D
Chipset
TI TPA3255
Proprietary / Modified Class D
Power
2 × 300W (Max) / ~100W Clean @ 4Ω
2 × 245W @ 4Ω (1% THD) / 2 × 300W @ 4Ω (10% THD)
Inputs
RCA
XLR/TRS (Balanced), RCA
Features
Bass and Treble Tone Controls
Volume Bypass (Pure Power Amp Mode), 12V Trigger
Sinad
—
102 dB (excellent for Class D)
Remote Control
✗
✗
Tube Stage
✗
✗
Price (estimated)
Price
~$70
~$549
Difference
~$479.00 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).
Topping PA7 Plus
- ⚠External power brick is massive and can be difficult to hide.
- ⚠Runs warmer than typical Class D amps due to high power density.
- ⚠No remote control (intended to be used with a preamp like the E70).
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