FRONT PANEL
1. Ventilation fan
2. Indicators (Protection and Output level)
3. Power switch with power indicator.
REAR PANEL
1. DC +24V input terminal
2. AC power input connector with fuse holder
T12AL / 250V T6.3AH / 250 V
3. Speaker connection terminal (4 Ohm, 70 V, 100 V and COM)
4. Level adjustment (-12 dB to 0 dB)
5. HPF (400 Hz) On/Off switch
6. Signal input and Link output connectors
7. Ground switch for provide against ground loop
8. Air flow