We have designed a digital amplifier circuit.
It involves three digital audio chips, will receive the music stream from a USB port from an android device and use a microcontroller to feed the 2 amplifier chips.
We are working closely with an excellent hardware engineer who will provide specific instructions about what is required. You will communicate with him directly until the software has been tested.
I understand we require writing of I2C, GPIO and RS232 drivers for the MCU.
I have attached a rough layout but there may be a slight alteration since that diagram was created.
the MCU proposed is the ATxmega64A1U.