The “sub crawl” is a little-known way you can optimize the placement of your surround sound system’s subwoofer.

We test the vanilla Audi, BMW, Ford, Lexus, Porsche, and Tesla in-car stereos against the optional high-end versions to see if you really should trade up.

YouTube TV is testing support for Dolby 5.1 surround sound on Google TV, Android TV, and Roku devices. In a tweet, the platform said 5.1 audio will “launch on those devices next” if ...