Alpine 3339 - Page 17

Stereo/Monaural Switch
When
the
ST/MONO
switch
@
is
set
to
the
MONO
position,
only
the
subwoofer
output
becomes
monaural.
Phase Switch
When
the
PHASE
switch
@
is
set
to
the
180
degrees
side,
the
phase
of
the
subwoofer
output
is
inverted.
Beep Button
Pressing
the
BEEP
On/Off
button
@
for
more
than
2
seconds
turns
the
beep
on
or
off.
17