Input Mode Switch (XTA 4140 ONLY)
Matches the input from the Source Unit to that of the amplifier, either 2 or 4 Channel (See page 13). This
eliminates the use of “Y” adapters and provides a cleaner input signal.
Low Pass Filter (LPF) Adjustment
Using this volume, adjust the LPF frequency for your subwoofer speaker(s) operation. The switch position of
X-Over should be at “LPF”
Fig.14 2 - 4 Channel Input Mode
Fig.13 Low Pass Control
40Hz
500Hz
LPF
CH2
CH4
INPUT MODE