Alpine CDA-7990 Manual De Usuario

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

Press the 

 UP button repeatedly to select

“SUB-W”.
Each press of the 

 UP button changes the

modes as shown:

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

°

).

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

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

Rotate MODE (Audio Control) knob until the
desired sound is obtained in each mode.

• If you press the 

 DN button

the display scrolls in reverse
sequence.

• “BASS”, “TREBLE” is

displayed when setting the
BASS/TRE mode to ON.