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I got an extra Cruze Pioneer amplifier for cheap and decided to take it apart to see what was inside.
It has two ST Electronics TDA7850 amplifier chips. These have 4 channels each and are 80 watts at 2 ohms impedance, or 50 watts at 4 ohms impedance. That makes 8 channels total, although the Cruze only has 7 channels (2x front, 1x center, 2x rear, 2x sub). They also have a stand-by and mute function, but no LAN capabilities. The Pioneer amp does not connect to the GM-LAN for DTCs.
It also has a digital sound processor. It uses a Texas Instruments TAS3108 Digital Signal processor combined with a Renesas M16C 16 bit microcontroller, which has a built-in 18 channel A/D converter. Although, I don't know if the amp uses this A/D converter because it also has a Texas Instruments PCM1802 A/D converter on the board. And, it has a TI PCM1609 D/A converter on board.
Other than that, there are a bunch of op-amps, a voltage regulator and all the required components to run these.

It has two ST Electronics TDA7850 amplifier chips. These have 4 channels each and are 80 watts at 2 ohms impedance, or 50 watts at 4 ohms impedance. That makes 8 channels total, although the Cruze only has 7 channels (2x front, 1x center, 2x rear, 2x sub). They also have a stand-by and mute function, but no LAN capabilities. The Pioneer amp does not connect to the GM-LAN for DTCs.
It also has a digital sound processor. It uses a Texas Instruments TAS3108 Digital Signal processor combined with a Renesas M16C 16 bit microcontroller, which has a built-in 18 channel A/D converter. Although, I don't know if the amp uses this A/D converter because it also has a Texas Instruments PCM1802 A/D converter on the board. And, it has a TI PCM1609 D/A converter on board.
Other than that, there are a bunch of op-amps, a voltage regulator and all the required components to run these.