Setting the unit
To adjust the switch, use a flathead screwdri-
ver if needed.
1 Power indicator
The power indicator lights up to indicate
2 INPUT SELECT (input select) switch
Select 2CH for two-channel input and 4CH
for four–channel input.
3 LPF (low-pass filter)/HPF (high-pass fil-
ter) select switch
Switch the settings based on the connected
! When the Subwoofer is connected:
Select LPF. This eliminates high range
frequency and outputs low range fre-
! When the full range speaker is con-
Select HPF or OFF. HPF eliminates low
range frequency and output high range
frequency. OFF outputs the entire fre-
! Switch the LPF/HPF select switches after
turning down the volume of the head unit.
! Protective function included to automati-
cally prevent malfunction of the unit and/or
speakers due to excessive output, improper
use or improper connection.
! Even though the sound is optimally ad-
justed, when outputting high volume
sound etc., this function may cuts off the
output for a few seconds as a normal func-
tion. However, the output is restored when
the volume of the head unit is turned down.
! When the sound output cuts off, turn down
the volume of the head unit.
! Despite turning down the volume of the
head unit, the unit sound still cuts out peri-
odically. In such cases, please contact the
nearest authorized Pioneer Service