Looking at the SVS web site, and hearing all the hype about them here in the forums, I'm intrigued with them. Since I'm on an extremely tight budget, I was looking at the 25-31 CS model, the lowest costing one, and was wondering if any of them live up to what SVS is? Also, about powering these subs, could you "just hook 'em up to any old reciever" to power them? I have an old Sony reciever from about '93, would this be sufficiet? What about powering ANY sup to an old reciever? Yes I'm a newbie... Thanks for any info you post!!