Depending upon the room or the characteristics of the right and left speakers, sound from the powered subwoofer may seem unnatural or unusually loud or soft.
In this case, try changing the PHASE switch setting. Set to the NORMAL or REVERSE position, whichever sounds better.
USING THE AUTO POWER FUNCTION
Before using this function, make sure the POWER button is set to ON.
While the AUTO POWER switch is set to ON, the power is automatically turned on when receiving a signal input from either INPUT 1 or INPUT 2.
The power is automatically turned off if no signal is input for a while and the indicator of the POWER button turns off. If input signal is too weak, this function does not effect.
While the AUTO POWER switch is set to OFF, the power is turned on or off by pressing the POWER button.
SETTING THE BASS SOUND RANGE
You can adjust the sound range of the powered subwoofer to complement the sound range of the other speakers.
Turn the TURNOVER control.
60 Hz: Output 60 Hz and under.
160 Hz: Output 160 Hz and under.