If you want big sound from your TV, you're probably going to want separate speakers for it. A soundbar might be the most obvious way to beef up the audio on your TV, but it isn't the only way. Thanks to Amazon's Alexa Home Theater feature, you can build a wireless surround sound system with a few of these echo speakers.It can even automatically calibrate however many speakers you use, and wherever you put them to give you a spatial audio field, which is basically a fancy term for really precise surround sou ...