External Audio Processor (Optional)
A compatible, external audio processor is operable from this unit when connected. Some audio processors may require a wired controller. The explanations below use the
Refer to the operating instructions of the audio processor for more details.
•The adjustments or settings performed on the connected audio processor cannot be operated properly from this unit.
•The setting “Setting the Speakers”, “Setting Bass Sound Control”, and “Graphic Equalizer Adjustments” are not available if the MRA- D550 is connected. Additionally, if the
•This unit cannot be connected to the
The Parking Brake must be engaged to access the Audio Processor mode screen. Attempting to access this screen while driving will display the
Adjustment Procedure for Dolby Surround
Make the adjustments described below in order to reproduce Dolby Digital and DTS sound with greater accuracy.
Adjustment procedure
1 | Speaker Setup (page 45) |
| (Turning the speakers to be used on and off and |
| setting their response) |
2 | Adjusting the speaker levels (page 45) |
| (Adjusting the signal output level to the various |
| speakers) |
3 | Mixing bass sound to the rear channel |
(page 44) | |
| (Achieving smooth sound in the rear seat by mixing |
| the front audio signals with the rear speaker signals) |
4 | Adjusting the acoustic image (page 44) |
(Adjusting the acoustic image to achieve a sound as | |
| if the centre speaker were directly in front of the |
| listener) |
5 | Achieving powerful high volume sound |
(page 45) | |
| (Achieving energetic sound with even greater power, |
| like the sound in a movie theater) |
6 | Adjusting the DVD Level (page 45) |
| (Adjust the volume (signal level) in the Dolby Digital, |
| Pro Logic II, DTS and PCM modes) |
7 | Storing Settings in the Memory (page 46) |
(Storing all the settings and adjustments made on the | |
| |
| the memory) |
In case of combining the Automatic adjustments etc.
We recommend to make the Automatic adjustments before the Dolby Surround adjustments.
