Tips for warming up Rotel + B&W system?

I recently purchased Rotel Integrated amp and B&W 703's to pair with my broken-in Rotel 1072 DC player. I've only had the system for 2 weeks, but I can't notice any improvent, The broken-in system sounded very good in the store but at home it sounds cold, dry, sterile, with harsh highs. I find the more I listen, the less I want to listen, which only slows doen the breaking-in process. Are there any audiogoners who've had experience with taming overly trebly B&W's?