The amplifier itself, same 12W Mono-AMP what I used on my ghettoblaster. Just two of them now (Stereo you know?). Heatsink is AM2-heatsink cut half, pretty darn cool eh ;)
This amplifier will not have too much power as you have maybe already realized, but later on (When I finnish my DIY CNC machine) I'll make better amplifier to fit on the same case design.
Comments are wellcome as always
Edit 1: Yes I know there is no the chip isolation on place yet, but there will be one... Just fitting on this picture.