Alpine CDA-7990 manual Subwoofer On and Off, 19-EN

Subwoofer On and Off

1 Press and hold the SETUP button for more than 3 seconds.

2 Press the UP button repeatedly to select “SUB-W”.

Each press of the UP button changes the modes as shown:

BASS/TRE REM CONT TUNER ILLUMI

MUTE AUX-IN D-OUT SUB-W SCROLL

3 Press the TUNE button to toggle mode between SUB-W ON and SUB-W OFF.

If an Ai-NET compatible processor with Subwoofer output is connected:

Press the TUNE button after selecting the SUB-W ON mode, and the subwoofer output phase is toggled SUB-W NORMAL (0°) or SUB-W REVERS (180°).

4 Press the SETUP button after setting the SUB-W ON.

5 Press the MODE (Audio Control) knob repeatedly to select the SUB-W mode.

SUB-W BALANCE

VOLUME FADER

6 Rotate MODE (Audio Control) knob until the

desired sound is obtained in each mode.

•If you press theDN button the display scrolls in reverse sequence.

•“BASS”, “TREBLE” is displayed when setting the BASS/TRE mode to ON.

19-EN