This is a upgrade to the Audio Distribution project ( LINK ) that now includes a 3W stereo amplifier. The box is still only mono.
The amplifier is TEA2025B ( ebay Link ) The link is for US availability. Cheaper if ordered from China.
It is a very basic circuit that can be modified to suit. Here there are 2 outputs on one channel and one on the other. The amplifier can easily handle more, or less, if needed. The amplifier volume control is on the left side of the picture. It is not in the schematic as it is part of the TEA amplifier.
Here’s the schematic:
NOTE: the LED has a 2K resistor on the + side, not in the schematic.
