Description
The ACDelco 84315073 GM Original Equipment Audio Amplifier is a recommended replacement for the audio system in your GM vehicle. Its purpose is to increase the power of a voltage or current signal, and it can produce either the same frequencies as the input signal or a portion of the frequencies. The amplifier sends the amplified signal to the appropriate speakers. The audio output channels have a DC bias voltage that is half of the battery voltage, and the audio being played is produced by a varying AC voltage centered around the DC bias voltage. Both the DC bias voltage and the AC voltage are necessary for the audio system to function properly. These original equipment audio amplifiers are specifically designed for GM vehicles and offer the same performance, durability, and service life as other General Motors products.
An ACDelco GM Original Equipment Audio Amplifier is part of the audio system, and is a GM-recommended replacement for your vehicles original component. The purpose of the amplifier is to increase the power of a voltage or current signal. The output signal of an audio amplifier may consist of the same frequencies as the input signal or it may consist of only a portion of the frequencies, as in the case of a subwoofer or midrange speaker. The audio amplifier amplifies the signal and sends it to the appropriate speakers. Each of the audio output channel circuits (+ and ?) at the audio amplifier have a DC bias voltage that is approximately one half of the battery voltage. The audio being played on the system is produced by a varying AC voltage that is centered around the DC bias voltage on the same circuit. The AC voltage is what causes the speaker cone to move and produce sound. Both the DC bias voltage and the AC voltage signals are needed for the audio system to properly produce sound. These original equipment audio amplifiers have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.