I just ordered a 25-31cs and a samson 700 amp. Should be here tomm. I still have my 1 yr old mirage powered 8 inch sub. If I wanted to add this sub into my exsisting system can I or would I want to even do that? Its only less than one yr old. Since its powered can I bypass its internal amp and let the samson push it? How can I wire this exsisting sub into my exsisting 5.1 system? What would you guys do? Scrap the old 8 incher into the closet or keep it in my system?