THX® Sound
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
For vehicles with the THX® sound system, the audio DSP module provides theatre quality sound in the vehicle. Audio signals are sent from the ACM to the audio DSP module, which processes the audio signals and sends them to all of the speakers. An enable detection circuit is utilized for the amplifier (internal to the audio DSP module). The circuit turns the amplifier on. The audio DSP module communicates on the MS-CAN. Customer preference settings such as fade and balance are broadcast to the audio DSP module by the ACM.