Black Friday is as good a time as any to upgrade your home audio setup. You can get the Sonos Era 300, the company’s only standalone speaker with spatial audio, for $379. That’s $100 off what Engadget’s Nathan Ingraham called “a great speaker,…

Black Friday is as good a time as any to upgrade your home audio setup. You can get the Sonos Era 300, the company’s only standalone speaker with spatial audio, for $379. That’s $100 off what Engadget’s Nathan Ingraham called “a great speaker,…