I have the rti10s hooked up to a denon 2807 reciever. I am not getting enough bass from them (escpecially for being floor standing). for some reason the polk rm300 (the lowest priced floor standing speakers that polk offers) is getting more bass then my RTi10s. I heard that maybe I need more power but the RM300 that I heard was from a cheaper reciever and had more bass. any ideas what the problem could be?