Fosi Audio ZA3vsSMSL AO200 MKII
A detailed side-by-side comparison of the Fosi Audio ZA3 and SMSL AO200 MKII — two popular amplifiers in the Chinese HiFi space.
Specifications
Spec
Fosi Audio ZA3
SMSL AO200 MKII
Class
D
D
Chipset
TI TPA3255
Infineon MA5332MS
Topology
Balanced Stereo / Mono
—
Power
155W x 2 (4Ω)
2 × 160W @ 4Ω
Inputs
RCA, XLR
XLR (Balanced), RCA, Bluetooth, USB (Flash drive only)
Features
Subwoofer Out, Trigger Input (dependent on revision), Op-Amp Rolling
Subwoofer Out, Balanced Circuitry, EQ Presets
Remote Control
✗
✓
Tube Stage
✗
✗
Price (estimated)
Price
~$132
~$312
Difference
~$180.00 cheaper (Fosi Audio ZA3)
Things to Know
Fosi Audio ZA3
- ⚠Frequency response is load-dependent (high frequencies may rise with 8Ω loads due to lack of PFFB).
- ⚠The subwoofer output is full-range pass-through on the main terminals; it does not filter bass from the main speakers.
- ⚠Volume control is defeated in Mono mode, requiring a preamp.
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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