Nobsound TA-21 - Front and Rear Panel Details; Controls and Indicators; Input and Output Connections; Power Supply Requirements

FRONT AND REAR PANEL
+
-
+
-
R L
+ -
DC9V-24V IN
+
-
Power input: DC9V-DC24V
This amplifier requires 50W power supply at minimum,
its auto power-off during use means that your speaker needs high
power supply to drive, please turn down the volume or change
another power supply with higher output.
Right channel Left channel
AUX
7
6 8
Input indicator
Blue--Bluetooth input
Green--AUX input
4
AUX input
5
Volume -
Volume +
6
3
Power button (long press)
Play / pause (short press)
Volume LED display
2
1