Ok, I have a lifestyle 25 surround sytem I spent £2300 on, but I'm not that satisfied with it to be honest. I'm thinking of replacing it with an Onkyo reciever (TX-SR875E)and putting some Kef speakers (3005SE)with it, but I'm going to leave the Kef sub out and instead opt for a Rel Acoustics Sub. The whole package will cost a little more than the Bose but I'm expecting a huge improvment in sound, is this going to happen or am I waisting my money, and considering I've pretty much decided that the Onkyo (£1000) receiver is the one I want , and only want a Rel sub (£500-1000) , are the Kef speakers the best way to go? (I want small speakers rather than big loud speakers but will change my mind for the right product). Cheers for your help.