speakers. I use them as my fronts. The center and rear 2 are Polks as well but I don't know the product #s. I also have a Velodyne 10 Sub. I currently have a Pioneer VSX-D812 Amp. ( around $200 at Circuit City ). I want something better, I can spend about $500 dollars. My highs sound like crap now with this amp. The Polks are supposed to sound pretty good but they don't right now. The 2 front Polks were around $1000 a piece retail (they are Towers). I have heard they are good speakers. I figure it is my Amp.