Comparison Chart
Model 
Number
V1
V1.0G
V2
A502P
TDA7498E
TB10A
TB10C
TB20A
HD-A1
Channel
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.1
2.0
Max Output 
Power Per 
Channel
30 watt
50 watt
50 watt
50 watt
160 watt
100 watt
50 watt
50 watt*2 
+100watt
120 watt
Bass and 
Treble 
Control 
NO
NO
NO
NO
NO
YES
YES
YES
NO
Input ways
AUX
AUX
AUX
AUX
AUX
AUX
AUX
AUX
AUX
Output to
Passive 
speakers
Passive 
speakers
Passive 
speakers
Passive 
speakers+ 
Headphones
Passive 
speakers
Passive 
speakers
Passive 
speakers
Passive 
speakers + 
subwoofer
Passive 
speakers
For speakers
2-8 ohm
2-8 ohm
2-8 ohm
2-8 ohm
2-8 ohm
2-8 ohm
2-8 ohm
2-8 ohm
2-8 ohm
Power 
Supply
12V
19V 
19V 
19V
24V 
24V 
19V 
24V 
AC 
110V/220V
Additional 
Features
Cheap but 
functional
Really 
clean 
sound 
quality
Simple 
but 
Powerful
With 
headphones 
output
Powerful 
and great 
sound 
quality
Best seller
Nice 
appearance
With 
subwoofer 
output
Audiophile 
level
Fosi Auido Power Amplifier (No Bluetooth) Comparison
 V1 V1.0G V2 A502P TDA7498E TB10A TB10C TB20A  HD-A1





