I have a HK receiver, Polk speakers, and digital cable. Changing the channels is an experience. Some stations, especially the lower # ones have too little volume, but then switching to most of the other channels the volume is too loud resulting in a "protection" warning on the receiver. So if i increase the volume and then change channels i have to "mute" so that the next channel won't freak out the neighbors. Did i not adjust something correctly on the receiver?