I would have to agree with Gonk. You mention what equipment you have but nothing about placement or how the room is set up. Don't be so quick to judge the equipment.

First, is the CC370 in the same exact place as the CC470 was?

Second, what is your room like? Do you have lots of windows or hard surfaces? Do you have any kind of curtains or carpeting? Is your room box shaped?

If you provide more details, maybe even some pictures, you will probably get more suggestions and tips than questions. You got the equipment, now it's time to work on the other part of your system: your room.