You're not at Isola with Bronwynn WIlson are you?
Without knowing a lot more about each suite, it's difficult to say. Certainly all systems need to know what 0dB is in the digital domain.
Is it just the monitor volume level in each room that differs, or is is the actual level of the file?
Regards,
Ty Ford
Ty Ford's "Audio Bootcamp Field Guide" was written for video people who want better audio. More at:
http://home.comcast.net/~tyreeford/AudioBootcamp.html
or
http://www.tyford.com