Porsche CDR-31 2011 Driver Manual page 16

Linear
When the "Linear" feature is activated, the CDR-31
switches from an accentuated-bass sound mode
("Linear OFF") to a more audiophilic sound ("Linear
ON").
1. Press the SOUND button.
2. Press the OPTION button or tap "OPTION" on the
touchscreen.
3. Select "Linear".
The "Linear" feature is now switched ON
OFF .
14
Basic functions
®
Burmester sound settings
1. Press the SOUND button.
or
2. Press the OPTION button or tap "OPTION" on the
touchscreen.
3. Select "Burmester".
You can choose from the following options:
– "Smooth"
– "Sound conditioner"
– "Surround"
– "Life"
4. Select to set the desired option.