This tool helps comparing acoustical predictions from Meyersound's MAPPonline. Also it lets you edit all single loudspeakers at once and furthermore there is a generator for subwoofer setups included. It works with current MAPPonline XT - xml and zip files can be opened directly, if you save edits or generate files they will be xml.
This software is neither written nor maintained by Meyer Sound Laboraties
more informations: http://www.trbtr.de/pmw/pmwiki.php/Software/MAPPViewer