1
2
3
4
9
8
5
6
7
10
11
2.1 20W/40W FRONT PANEL
1.
MIC1 INPUT
MIC1 input Microphone jack input
2. MIC1 \MIC2
MIC volume control (MIC1/MIC2)
3. AUX
AUX volume control
4. TEL
TEL
volume control
5. BASS
Adjust bass response. Rotate clockwise to
increase bass output and anticlockwise to
reduce it.
6. TREBLE
Adjust treble response. Rotate clockwise to
increase treble output and anticlockwise to
reduce it.
7. MASTER
Master volume control
2. NOMENCLATURE AND FUNCTIONS
8. POWER
Power indicator
9. POWER SWITCH
On top of the opening Power
Press the end, power shut down
10. LEVEL INDICATORS
Level meters 5 output level indicators
11. PROTECTION
When the machine is in protection status,
this indicator will be lit: in normal operation
status, the LED is off. If the product is in
protection status due to overheating,
overload or direct current, the indication
LED will be lit while the output relay will be
disconnected. (Signal indicator is just used
to indicate the use of input music signal.
In the protection status, signal indicator is
still lit according to the size of input signal.)
6
MIC1
INPUT
BASS
TREBLE
MIC2
TEL
OUTPUT LEVEL
2
4
6
8
10
PROT
POWER
MIC1
AUX
MASTER
ON
OFF
0
0
0
0
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
10
10
10
10
-5
-5
0
0
-1
-1
-2
-2
-3
-3
-4
-4
+1
+1
+2
+2
+3
+3
+4
+4
+5
+5
5
0
1
2
3
4
6
7
8
9
10
MIXER AMPLIFIER
MPA-20
