I saw this thread a bit late. FWIW I have owned the Rushmore's for a few years now. If I had the space, I would buy another set for surround. They are that good!
Just that the problem with active speakers is that they tend to be ultra transparent to anything up the chain so what you may be hearing are usually colorations upstream. As true full range speakers, they need to be matched properly with the room...(definitely not hotel rooms) but get them right with the best upstream components (the Pass preamps don't match it as well as the better valves) , and you will be having Ella Fitzgerald in your living room.
Just that the problem with active speakers is that they tend to be ultra transparent to anything up the chain so what you may be hearing are usually colorations upstream. As true full range speakers, they need to be matched properly with the room...(definitely not hotel rooms) but get them right with the best upstream components (the Pass preamps don't match it as well as the better valves) , and you will be having Ella Fitzgerald in your living room.