Looking for High power and good quality tv sound system

[jamesfindlay3]

Hi I am currently looking for a good tv sound system preferably under £400 if anyone has experience in this sort of thing and knows what to get could you please recommend something that is preferably wired and good for a large room. I have been looking at a few things and here is the sort of thing I have in mind: http://www.argos.co.uk/product/6162375 and http://www.samsung.com/uk/audio-video/wireless-rear-speaker-swa-8000s/ I would combine them together. If you have any other options this would be great and feel free to ask for more info if needed, thanks!

P.S the telly is a sony bravia 55 inch smart tv.