Ok heres my last(hopefully) post about trying to save money and getting good sound. I was thinking about buying a set of 10" car speaker woofers...these will be made by a reputable car audio company and I'll make sure they can handle(RMS) a pretty large sum of watts. Now someone saying that sealed boxes aren't as efficient as vented boxes(did he mean ported?) If this is so, can I make my own box(My dad does wonders with woodwork...he makes furniture for a hobby)that is ported and the speakers will work just as efficiently as say Edens and sound just as good? Also where can I buy tweed and how exaclty do they get that stuff to fit around the box...I'm probably going to measure the dimensions of D-210xlts and build it like that...hell I'll even buy the grill, crossover, and horn from them? Will it work? If this works out cheaply(which it will cuz I get factory discounts on car speakers, and my dad will probably buy the wood cuz he likes doing crap like this too much) After that I'll probably attempt to find a decently cheap Aguilar preamp(used) and a Carvin DCM600...Oh yeah one last question, what exactly does a horn do? Does that control the highs, is a tweeter placed inside some how?