what does it mean exactly when a center channel is "matched" to the front speakers? i want to replace my rc-3 with an rc-7 or even a klf-c7. my front channels are rf-3's. will this cause problems? im always wanting i new center channel, because i primarily watch movies with my speakers, almost no 2 channel stereo music. not that the rc-3 isnt a great speaker. thanks for the information.