My initial response is to ask if your speakers are too far apart. What you are experiencing is normal to a degree, but it shouldn't be that dramatic. Try moving them together a few inches and see if that helps. Put marks on the floor for the original placement in case this does not solve the problem.
Have you done your homework in regard to speaker placement? Robert Harley's book is a helpful starting point. Rives can help a lot too!
Have you done your homework in regard to speaker placement? Robert Harley's book is a helpful starting point. Rives can help a lot too!