2cj, in spite of the well-meaning advice from myself and others here, you must have the patience for experimenting in your own set up.
Any recommendations for specific dimensions must be considered only as recommendations for your list of trials. There are simple too many variations in room dimensions, construction, treatments, associated equipment, and personal taste for any of us to tell you "exactly" how to set up your speakers.
I believe you will continue to find your speakers to be very revealing, therefore they may benefit from even small adjustments.
Good luck and have fun.
Any recommendations for specific dimensions must be considered only as recommendations for your list of trials. There are simple too many variations in room dimensions, construction, treatments, associated equipment, and personal taste for any of us to tell you "exactly" how to set up your speakers.
I believe you will continue to find your speakers to be very revealing, therefore they may benefit from even small adjustments.
Good luck and have fun.