Power amplifier, Premium/Prestige
|
|
Power amplifier, Premium/Prestige
|
The Premium and Prestige audio systems each contain a separate amplifier unit which supplies the speakers in the system. The amplifier is connected to the wiring harness via a 39-pin connector.
The amplifier for Prestige is available in two models, one for 4D and one for 5D cars. As the sub-woofer system for 5D cars is different, having another speaker element and location, the power amplifier outputs for the sub-woofer system require other characteristics.
The difference compared with Prestige for the 4D is that another type of signal filtering is required in the amplifier in order to drive the speaker element in the sub-woofer cabinet on the 5D.
|
Note
|
|
Physically, the Prestige amplifiers for 4D and 5D cars are the same in appearance and connectors, so that it is possible to connect an amplifier intended for a 5D car into a 4D car. The sound quality from the sub-woofer will not be satisfactory, however, as it will be driven too hard. In the other case, if an amplifier for a 4D car is fitted into a 5D, the sub-woofer reproduction will sound washy.
|
|
•
|
The amplifier unit is powered separately (+30) from fuse 13 to pins 1 and 2 in the amplifier connector.
When the audio system is activated, trigger voltage is simultaneously supplied by pin 14 (K16A) on the head unit to pin 12 in the amplifier connector. The trigger voltage activates the amplifier.
|
|
•
|
Audio - the input signal (four channels) is supplied by the head unit line outputs to the amplifier. Two channels are used for the front speaker and two for the rear (fader function).
|
|
•
|
Audio Premium - the output signal (6 + 1 channels) from the amplifier to the front and rear speakers.
|
|
•
|
Audio Prestige - the output signal (8 + 1 channels) from the amplifier to the front and rear speakers.
|
|
•
|
Mute control - is supplied by pin 11 (K16A) on the head unit to pin 11 in the amplifier connector to disconnect the sound. It prevents a clicking sound from being heard in the speakers when the ignition is switched on and off.
|
See Test readings, amplifier connections
