How far back does the X5 need to be for a 100-inch image?

As a long-throw projector it needs several feet of distance; expect roughly 8 to 10 feet for a 100-inch picture. Check Formovie's throw ratio for exact placement before buying.

Is the X5 bright enough for a room with windows?

Its ALPD laser engine is among the brighter 4K projectors and includes ambient light adaptation. It handles moderate room light well, but a dark room still gives the best contrast.

Do I need a soundbar with the X5?

No. The built-in Denon speakers support Dolby Atmos and DTS-HD Master Audio, so it works as a standalone system. A dedicated surround setup will still beat it for serious home theater.

Does it correct the image automatically?

Yes. It offers omnidirectional auto-correction, laser autofocus, automatic curtain alignment and ambient light adaptation, so setup is largely hands-off.

How does the X5 compare with ultra-short-throw projectors?

The X5 is long throw, so it sits across the room rather than under the screen. That makes placement less flexible than a UST model but avoids the fussy screen alignment UST projectors need.