Comparison Chart

Model Number+
BT-01
BT10A
BT10C
BT20A
BT20C
BT30A
BT30C
T20
DA2120C
Channel
2.0
2.0
2.0
2.0
2.0
2.1
2.1
2.0
2.0
Bluetooth Version
4.2
4.0
4.2
4.2
4.2
4.2
4.2
4.2
4.2
Max Output
Power Per
Channel
30watt
50watt
50watt
100watt
50watt
50watt*2
+100watt
50watt*2
+100watt
50watt
120watt
Bass and Treble
Control
NO
NO
NO
YES
YES
YES
YES
YES
YES
With BT and
AUX selector
Auto
Switch
Auto
Switch
Manua
Switch
Auto
Switch
Manua
Switch
Manua
Switch
Auto
Switch
Manua
Switch
Manua Switch
Input ways
AUX +
BT
AUX +
BT
AUX +
BT
AUX +
BT
AUX +
BT
AUX +
BT
AUX + BT
AUX + BT
AUX + BT
+ USB+
OP/CO
Output to
Passive
speakers
Passive
speakers
Passive
speakers+
Headphon
es
Passive
speakers
Passive
speakers
Passive
speakers +
subwoofer
Passive
speakers +
subwoofer
Passive
speakers+
Headphones
Passive
speakers
Power Supply
12V
19V
19V
24V
19V
24V
24V
24V
32V
Additional
Features
Cheap but
functional
Simple
but
Powerful
Support
apt-X
Bluetooth
Best
seller
Support
apt-X
Bluetooth
Support
apt-X
Bluetoot
With SUB
frequency
control
Tube Amp
Multifunctional
Fosi Auido Bluetooth Amplifier Comparison
BT-01 BT10A BT10C BT20A BT20C BT30A BT30C T20 DA2120C