I have a HK AVR 120 (45 watts x 5)receiver, 2 Polk RT25i's (fronts, a Polk CSi 30 (center) and two Polk fx 300i's for my surrounds. As you can tell by the system I have I am on a rather tight budget. I am looking to by either a Velodyne CHT-10 or a Polk PSW404. Or, since I have a rather low powered receiver would it be ok to get an 8" of either model? Any help would be appreciated.