Ok from your recomendations and help I was able to build a sub using a swan driver and apex jr. amp. That stupid thing shakes the house more than I could have ever expected. So now I am on to building center speaker, since the one I am using is really cheap. My receiver is a Onkyo 575x if that helps. Do you guys know of any websites or such that has a decent plan for building a center speaker. I am hoping to stay closer to $100, but I guess would go up to $200 if it makes that much difference. Seeing how I was able to make the sub for $230 total I am thinking this is a reasonable estimate for a center. Thanks for any help.