need advice with home theater

[fatces]

hi, i got an sony STR-K670P home theater, but the center and satellite speakers are to small (thats my opinion) and i want to know if i can change them and if so, what do i need to take in cosideration. thanks guys

here are more details
Category amplifier. Output power per channel 100 watts. Number of channels5.1 channels Surround sound Dolby Digital , Dolby Pro Logic II , DTS Tuner

[WildManWiles01]

Really any speakers will do in your case.... I mean, if you go to your local entertainment store and love a certain center channel speaker, or surround speakers... then buy them. Doesn't really matter the brand and most speakers now adays (unless they are incredibly cheap) are capable of over 100 watts, so you should have no trouble there.

But why do you not like them? Size really doesn't matter in the case of speakers. If they are putting out really good sound.... wouldn't you want them tiny so not many people would see them, but still give the good sound?

That's my opinion. I used to have the huge standing speakers all over the house.... then once upgraded to the bose tiny surround.... I will never go back. I love how small they are. They hide easy, plus give great sound.