Inter-M DPA-430L - Manual (Page 8)

MULTI CHANNEL POWER AMPLIFIER
6 DPA-430L
6. HIGH PASS FILTER SWITCH
Pressing the switch turns on the high pass filter.
The corner frequency (-3dB) is 20Hz when the high pass filter switch is off or 50Hz when the high pass filter
switch is on.
7. VENTILATION
It is the air vents. Do not stuck the ventilation panel to secure enough cooling.
Inside the ventilation panel, there is a dust filter. To clean the filter, remove the front panel and clean the dust
filter.