Enlarge / The Sonos Era 100 and Era 300 speakers. (credit: Sonos)

After months of detailed leaks, Sonos has finally announced its next generation of wireless speakers. Dubbed the Era 300 and Era 100, they replace the longstanding Sonos One and emphasize spatial audio or stereo sound, respectively.

Let's start with a look at the Era 100, which directly replaces the Sonos One in the lineup with a slight $20 price hike to $249.

Sonos Era 100

The Era 100 has two tweeters, which work in combination with the speaker's ability to analyze a room to produce a custom sound field and provide true stereo sound; the One wasn't able to provide true stereo audio. The Era 100 still has just one woofer, but it's 25 percent larger than the woofer in the One, offering improved bass performance.