Using subwoofer output
This unit is equipped with a subwoofer output which can be turned on or off. When a subwoofer is controlled with this unit, first, switch the RCA output setting to subwoofer, then turn the subwoofer output on. For more details, see Switching the RCA output setting on page 32. 1 Press AUDIO to select Phase. When the RCA output setting is P/O :S/W, you can select Phase. Press AUDIO until Phase appears in the display. 2 Press a to turn subwoofer output on. Phase:NOR appears in the display. Subwoofer output is now on.
# To turn subwoofer output off, press b.
506380100125 (Hz) Only frequencies lower than those in the selected range are output from the subwoofer. 3 Press a or b to adjust the output level of the subwoofer. Each press of a or b increases or decreases the level of the subwoofer (e.g., +6 to 24). Press a or b until you see the desired value displayed.
Adjusting low pass filter attenuation slope
When the subwoofer output is on, you can adjust the continuity of sound between speaker units. 1 Press AUDIO to select the slope setting.
3 Press c or d to select the phase of subwoofer output. Press c to select reverse phase and Phase:REV is displayed. Press d to select normal phase and Phase:NOR is displayed.
Press AUDIO until SLOPE appears in the display. 2 Press c or d to select slope. Press c and 12 is displayed. Press d and 18 is displayed.
Note
Adjusting subwoofer (low pass filter) settings
When the subwoofer output is on, you can adjust the cut-off frequency and the output level of the subwoofer. 1 Press AUDIO to select the subwoofer setting. When the subwoofer output is on, you can select the subwoofer setting. Press AUDIO until 80 appears in the display.
# If the subwoofer setting has been previously adjusted, the frequency of that previously selected will be displayed instead of 80.
When slope of subwoofer and high pass filter are 12, and same cut-off frequency, the phase is reversed 180 degrees at the cut-off frequency. In this case, reversing the phase assures improved sound continuity.
Using the high pass filter
2 Press c or d to select cut-off frequency. Each press of c or d selects cut-off frequencies in the following order:
When you do not want low sounds from the subwoofer output frequency range to play from the front or rear speakers, turn the HPF (high pass filter) on. Only frequencies higher than those in the selected range are output from the front or rear speakers. You can set up front and rear separately.
