I bought a pair of Sony SS950 and want to replace the drivers, just use the cabinet. It has been brought to my attention that it may be hard to do the crossovers. I don't know alot about speaker building but would like to try. The woofer is a 10" and I believe the tweet is a 4 inch but sits in a 2 1/2" hole. I would like any suggestions as to what would be the best approach what drivers to use. Even advise "don't bother" would be appreciated. I want to use these as my surrounds. I can take pics if need be. PLZ HELP!!