Optimus MP-120D1 Installation And Operating Instructions Manual page 12

3. FRONT PANEL
Audio input terminals.
(1)
Volume control.
(2)
Protection Led indicator.
(3)
4. REAR PANEL
Speaker output connector.
(6)
AC outlet.
(7)
MP-120D1 Version 1.0
MP-120D1
(4)
(5)
(8)
Class-D amplifier
Power Led indicator.
Power switch.
Fuse.
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