Fosi Audio BT20A ProvsSMSL AO200 MKII
A detailed side-by-side comparison of the Fosi Audio BT20A Pro and SMSL AO200 MKII — two popular amplifiers in the Chinese HiFi space.
Specifications
Spec
Fosi Audio BT20A Pro
SMSL AO200 MKII
Class
D
D
Chipset
TI TPA3255
Infineon MA5332MS
Power
2 × 300W @ 4Ω
2 × 160W @ 4Ω
Inputs
RCA, Bluetooth 5.0
XLR (Balanced), RCA, Bluetooth, USB (Flash drive only)
Features
Tone Controls with center detent (bypass), Pre-Out
Subwoofer Out, Balanced Circuitry, EQ Presets
Remote Control
✗
✓
Tube Stage
✗
✗
Price (estimated)
Price
~$76
~$312
Difference
~$236.00 cheaper (Fosi Audio BT20A Pro)
Things to Know
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.
SMSL AO200 MKII
- ⚠The USB port is for flash drive playback only, not for connecting to a PC/Phone (confusing for many users).
- ⚠Menu navigation knob can feel slightly wobbly compared to the rest of the chassis build.
- ⚠Bluetooth implementation does not support high-res codecs like LDAC.
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