Good Afternoon, I currently have 270HDs as fronts with a 225HD centre and 90HDs as the rears with a BK400 Sub. Now, I was toying with the idea of changing the center speaking with a monitor audio silver but my wife stuck her 2 pennys worth in and started the whole can we not change them all and get smaller ones. So my question is, can I possibly replace the above with anything which will be on the same level if not better without outlaying too much. If so what should I be looking at? If not, then it looks like she'll have to pipe down with her ideas. I'm sure she'll moan if they don't look right. Thanks in advance.