I am just getting back into the car audio scene and I need some help from you guys. I am starting to put together a sytem that includes: Hu- Clarion HX-D10 w/ the DPH910 processor, Amp- Directed 400( 125x2), Sub- ID8v3, Focal Polyglass tweets(TN-45) w/Polyglass x-overs and a set of Pioneer Reference 6 3/4 mids that can be found here: http://www.pioneer-eur.com/eur/product_detail.jsp?product_id=716&taxonomy_id=25-131 My friend gave me the Focal tweets and x-overs along w/ the mids so I would like to use these together if at all possible. Should I run the tweets off the Polyglass x-overs and buy an active x-over for the mids or run them both active? I can't find much info on the pioneer mids (other than they retailed for around $300)and am not sure where to cross them over at. Little confused on how this whole active thing works. Any help you guys could give me would be much appreciated.