The green lamp lights while the unit is turned on.
CROSSOVER filter switch
Normally set to this position.
Set to this position when you want to turn on the LPF (Low-Pass
Filter) switch. The Low Pass Filter transmits frequencies lower than
Set to this position when you want to turn on the HPF (High-Pass
Filter) switch. The High-Pass Filter transmits frequencies higher than
INPUT SENS. (input sensitivity) controller
Set this control according to the line-output level of the center
unit connected with this unit. For the line-output level, refer to the
"SPECIFICATIONS" in the instruction manual of the center unit. This
controller is preset to 5 V when the unit is shipped.