By BUILDER Magazine Staff. Sim2USA is shipping its Grand Cinema RTX line of rear projection monitors. The RTX comes with a DigiOptic Image Processor (DOIP) that accepts digital video signals and is connected by a single fiber-optic cable to the RTX monitor. The fiber-optic cable allows for sharper video quality and accuracy and, because it can run over longer distances, is more flexible for builders to install. The 55-inch model lists for $12,995, and the 45-inch model sells for $10,995. Both come with the DOIP. Interested builders can find a list of authorized dealers at or call 888-695-3113.