projection on a screen distance 3.5m, after some sharp image setting through OSD remote in french made setting contrast / light / color. testing of all sources VGA / AV / HDMI, good record for all source, however, the best solution is HDMI For sound, the connection on a chain is by far the best solution, in my quadraphonic HP each side of the screen left and rear right. the few bright fan does not disturbs listening. the finish is neat for a product whose price is very affordable. I recommend this product to make a home theater in a piece on 3.4 4,2m distance from the projector to the screen 3.5m 2m 1.5m screen.