Audio 50 APS volume/sound settings, function - GF82.61-P-2006GZ
MODEL 164 except CODE (494) USA version except CODE (498) Japan version with CODE (525) MB Audio 50 APS radio up to Model Year 2008
The signal processing required for the volume and tone settings is accomplished by the radio and navigation unit (A2/56). If the vehicle is additionally equipped with the amplifier for sound system (N40/3) (sound system, code 810), this amplifier provides the final amplification of the audio signals.
Audio sources are:
- Radio
- CD player
- 6-disk CD changer, code 819
Service sources include:
- Telephone
- Traffic announcement
- Voice output for navigation
- Voice output for voice control system (VCS [SBS]), code 813
Volume
A different volume setting is possible for the navigation and for the telephone. A shared setting applies to the other modes. The set volume is stored automatically by the radio and navigation unit for the currently active mode. The volume for navigation announcements can only be set during an announcement.
Automatic volume control
Automatic volume control controls the volume
- dependent on the vehicle speed (in vehicles without sound system) or the interior noise in the vehicle (in vehicles with sound system) (sound system, code 810) and
- dependent on other parameters such as window open or closed.
Fade-over of volume
Audio sources that are faded in automatically are superimposed on a currently active audio source.
An automatically faded in navigation announcement overlays, for example, the audio source radio mode which has just become active. The degree of reduction is adjustable.
Volume setting
The volume can be adjusted with the rotary pushbutton of the radio and navigation unit for each of the selected audio sources as well as for the voice output for navigation, voice output for voice control system (VCS [SBS]), and telephone.
The volume can also be controlled with the + and - buttons on the multifunction steering wheel when set to specific functions and volume control (S111s1)
Switching on again
After switching back on, the volume may be quieter than when switched off.
It is quieter if
- the radio and navigation unit was switched off for longer than 15 min and
- if, when switched off, the volume was set to a value within a certain range (e.g. too loud).
Muting
When muting is activated, only traffic announcements and navigation announcements are audible.
Pressing the "Speaker symbol" function key activates or deactivates the mute function.
Tone setting
The radio and navigation unit enables manual sound adjustments for each audio source.
The tone settings include:
- Treble and bass
- Balance/fader
- Sound only with sound system (sound system, code 810)
Treble and bass
Differentiated treble and bass control is possible with the following features:
- Radio (AM, FM)
- CD drive and CD changer
- AUX mode
- Navigation mode
The display for setting the treble or bass appears by pressing the "bass and treble" button (musical clef) on the left side.
The "left" and "right" arrow keys can be used to set the treble and bass.
Pressing the "OK" button of the cross-shaped controls stores the set value. If the operator waits until the display changes, the value is also stored.
The bass and treble for the navigation announcements can only be set during an announcement. No bass or treble adjustment is available for the telephone mode nor for the voice control system.
Sound (sound system, code 810)
For the following functions
- Radio,
- CD player,
- CD changer and
- AUX,
the following adjustments
- Standard,
- Language and
- LOGIC7, Surround playback are available.
After pressing the Sound multifunction button in the tone menu, it is possible to select the desired setting using the "up" and "down" arrow keys. The setting can be stored using the "OK" button in the control cross.
The 7-channel surround playback does not function for mono signal sources such as the AM wavebands with radio mode.
Balance/fader
Pressing the "Speaker" Bal/Fad button on the left-hand side activates the display for setting balance and fader.
The display shows a horizontal and vertical line which intercept. The horizontal line represents the fader and the vertical line, the balance.
The "left" and "right" arrow keys can be used to set the balance and the "up" and "down" arrow keys can be used to set the fader. The setting is stored when the "OK" button in the control cross is pressed. If the operator waits until the display changes, the value is also stored.
A separate common balance and fader setting applies to the radio, CD and AUX modes and a common setting applies to the navigation mode.
| Audio 50 APS, component description | GF82.61-P-4099GZ | ||
| Sound amplifier, component description | With sound system code 810 | GF82.62-P-3009GZ | |
| Speaker system, component description | With MB Audio 20 radio, code 523, with COMAND APS (with navigation system), code 527, with sound system, code 810 | GF82.62-P-4220GZE | |
| CD player with changer, component description | with code 819 CD changer (6 CDs) | GF82.64-P-3112GZ | |
| Voice control system (VCS), function | with Voice Control System (VCS [SBS]) code 813 | GF82.70-P-0002GZ | |
| Multifunction steering wheel, function | GF82.90-P-0001GZ |