Sound bar (above)

To produce the rumbles of that big brontosaurus, Sennheiser’s Ambeo uses six 4-inch woofers and a pair of 3.5-inch mids to bounce deep tones off the walls and ceiling, nixing the need for a dedicated subwoofer. Five tweeters hit the high notes.

System

When you set up the five speakers and single ­subwoofer in the ­Yamaha 5950U, they ping calibration sounds out around the space to determine which ­audio setting is best for your home, even if you have high ceilings or an oddly shaped room.

Headphones

Immersive audio becomes disorienting if it doesn’t match what you see onscreen. Dolby’s Dimension headphones use accelerometers to detect when you’re ­off-axis with your TV, and tweaks the timing so your eyes and ears agree with each other. This story originally published in the Noise (Winter 2019) issue of Popular Science.