Have you tried running the Audyssey speaker setup software that comes with the Marantz? I suggest that you run the setup on full auto and then analyze the results to look for any clues or anomalies it finds as it runs thru the various tests. If possible, try to find a PC program to help the analysis. There are many on the market that can help you understand your room better based on the setup data. What you learn can then be used to guide you towards making the right decisions rather than just throwing money at it.
Understanding your new room's acoustic properties could make it your finest "component". I would love to have that room!
Understanding your new room's acoustic properties could make it your finest "component". I would love to have that room!