The XMU attachment kit is designed to position the Phoenix lens in front of the primary lens of most projectors which have already been ceiling mounted with the Chief RPA with either the universal or SLB projector adapter (Chief parts not included) per the manufacturer’s instructions and where the projector lens center is no greater than 4” (100m) to the left or right of the center of the ceiling mount pole. If you have not yet purchased a ceiling mount for your projector, the Chief RPA with SLB is generally the easiest to work with since it requires the least adjustments while installing the XMU Attachment Kit.

Please note that if you are using the universal Chief projector adapter you should take care to set up the arms per the manufacturer’s instructions so that the mounting pole is at or just a little in front of (ie toward the screen) the center of gravity of the projector for best balance.