Version 2.0 of my other project, Network Amplifier. This time around, I'll be hosting all the components including the amplifier and power supply within the cavity of the centre speaker. Decided to go ahead with just mono as I didn't want to add new crossovers to the existing speaker and it will serve well as yet another prototype for self-contained WiFi speakers. Reducing the footprint is also a strong motivator for this project, as at the moment version 1 takes up the room of the original amplifier (that I retro-fitted) and the two 'bookshelf' speakers that are the back left and right surround speakers of the same system that the centre speaker is from. Fitting a touch screen and upgrading to RPi2 are nice to have items as the original version 1 does everything that we need. I'm going to be testing another FM radio module in this model as the current one's receiver is quite weak.