The Acoustical ImagerŪ is a revolutionary projection screen that marries a fixed frame screen with 5.1 Surround Sound. Left, center and right front speakers are integrated into the frame with two table or floor mounted satellite speakers. Upgradeable to 6.1 or 7.1. Audio is provided by the JBL surround sound speaker system. Standard with Pro-Trim, a fabric frame covering that aesthetically enhances the appearance of the installation while absorbing light that surrounds the viewing area. Choose between Video (4:3) or HDTV (16:9) on eight projection surfaces, or let Da-Lite build a custom sized screen for your home theater. Front projection surfaces standard with black backing for opacity.