I've heard great things about the Magnepan MMG's. I've heard though, that a hefty amp/receiver is required to power them. I'm not to knowledgeable so I was wondering if anyone could recommend me an SACD player and an amp/reciever that would go well with these speakers and cost less than $500 for both. Also, would it be possible to fit a subwoofer in that $500 budget or is that asking to much? Thanks.