Looking for something similar to this?

[Lighty]

Anyone got any ideas where I can find an "In Wall Amplifier" similar to this I dont mind the price on this one but theres just not enough Info on it on that site I need to know more about it i.e. how its powered I mean I can see it comes with an AC adaptor but if im am to sink this into my newly plastered walls how do I then get the AC cord to it? surely you dont plaster a plug in cord into the wall
LINK

Basically its for my long on going project that has been stopped for about 9 months and now Im about to get stuck into it again its a Very Big Kitchen extension and I want to utilise this that I have

So basically I need an Amp that is very small as I dont want one under the cupboard and all it needs to have is a set of Phono in's for the NEtgear Audio Player and I have already installed the speakers in the ceiling and the Speaker cable is now plastered into the wall. Dont particularly want something mega powerful its just for music whilst we cook or entertain or whatever maybe could do with being loud enough for when I have BBQ's and shit like that but I have also installed outdoor sockets for that reason