BOSE Speaker Amp. (ANC/ASE) System

The BOSE speaker amp. active noise cancellation/active sound enhancement system consists of the following components:

• Front left, front right and rear microphones (active noise control)
• BOSE speaker amp.
• Tweeters
• Center speaker
• Front door tweeters
• Front door speakers
• Rear door speakers
• Rear subwoofers

The Active Noise Cancellation system is designed to reduce low frequency noise in the interior. The system operates whenever the vehicle is running, whether the audio system is on or off. The active noise control microphones capture low-end drivetrain frequencies entering the interior and send a signal to the BOSE speaker amp. The BOSE speaker amp. uses the microphone signal along with the RPM signal from the ECM to create a precisely timed reverse phase audio signal and send it to the speakers.

The Active Sound Enhancement system is designed to enhance the sound of the engine. The system operates whenever the vehicle is running, whether the audio system is on or off. The active noise control microphones capture drivetrain frequencies entering the interior and send a signal to the BOSE speaker amp. The BOSE speaker amp. uses the microphone signal along with the RPM signal from the ECM to generate a complimentary audio signal and send it to the speakers.