Cadillac 2007 CTS Owner's Manual page 268

Using Digital Signal Processing (DSP)
Available only with the premium Bose
system, this feature is used to provide a choice of
five different listening experiences: DSP normal,
talk, spacious, rear seat, and driver seat. DSP can
be used while listening to the radio or the CD
player. The radio keeps separate DSP settings for
each band, preset, and source. To select a
DSP choice, perform the following steps:
1. Press the TUNE/SEL knob to enter the
main menu.
2. Turn the TUNE/SEL knob until one of the five
settings appears on the display.
3. Press the TUNE/SEL knob to select a DSP
setting.
4. Press the CLR button to exit the display. To
return to the original display, repeatedly press
the CLR button or wait for the display to
time out.
DSP NORMAL: This setting provides the best
overall audio performance for all passengers. DSP
NORMAL will not appear on the display when in
this mode.
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TALK: This setting should be used when listening
to non-musical material such as news, talk
®
audio
shows, sports broadcasts, and books on tape.
Talk makes spoken words sound very clear.
SPACIOUS: This setting is used to make the
listening space seem larger.
REAR SEAT: This setting adjusts the audio to
give the rear seat passenger(s) the best possible
sound quality. Sound quality for the front seat
passengers may be different when this setting
is used.
DRIVER SEAT: This setting adjusts the audio to
give the driver the best possible sound quality.
Sound quality for the front and rear seat
passenger(s) may be different when this setting
is used.