Aiyima A07 MaxvsFosi Audio BT20A Pro
A detailed side-by-side comparison of the Aiyima A07 Max and Fosi Audio BT20A Pro — two popular amplifiers in the Chinese HiFi space.
Specifications
Spec
Aiyima A07 Max
Fosi Audio BT20A Pro
Class
D
D
Chipset
TI TPA3255
TI TPA3255
Topology
Stereo / Mono
—
Power
2 × 300W (4Ω) @ 48V
2 × 300W @ 4Ω
Inputs
RCA
RCA, Bluetooth 5.0
Features
Venting on sides (improved cooling)
Tone Controls with center detent (bypass), Pre-Out
Remote Control
✗
✗
Tube Stage
✗
✗
Price (estimated)
Price
~$65
~$76
Difference
~$11.00 cheaper (Aiyima A07 Max)
Things to Know
Aiyima A07 Max
- ⚠Vents are located on the bottom/sides, which is better than the original but still relies on passive convection.
- ⚠Some users report 'sparking' at the DC input jack when connecting power (connect brick to wall last).
- ⚠Aux output is not a true variable pre-out.
Fosi Audio BT20A Pro
- ⚠Bluetooth is always active; anyone can pair with it if you don't disconnect.
- ⚠Tone controls can introduce slight phase shift even at center detent.
- ⚠Pre-out level is low compared to industry standards.
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