I've just bought some home cinema gear and I'm confused about what height to place my rear Castle Compact satellite speakers (regular ones rather than dipoles). I will be using wall brackets so am flexible on height. I thought I'd read that the tweeter should be at ear height but now I've just read in a magazine that rear speakers should be placed high on the wall and 'toed in'. Perhaps it dpends on how far behind you the speakers are? In my case the speakers will be on the wall, either side of a sofa that is virtually against the wall itself. Thanks.