Another welcome addition is Bluetooth pairing. The Era 100 has it onboard, so you can stream audio to your speaker without a Sonos account. It also makes it easier than ever to pair a Sonos speaker with a Bluetooth turntable. Sure, you won’t be listening in the analog domain anymore if you transmit the signal wirelessly from the record player to the speaker, but one could argue (and we do) that the point of vinyl isn’t really the sound quality, it’s the whole aesthetic experience. Sonos also sells a line-in adapter ($19), if you want to plug in a CD player or other outboard device.

The Era 100 sounds noticeably better than the two generations of Sonos One speaker that came before it. The bass is punchier and more defined, and it doesn't feel restrained like it did in the previous models. There's also a “room tuning” feature on the speaker that really solves some of the bass problems that plagued the older model. Place the speaker near a wall or corner and run the room tuning routine. The Era 100 will listen to what its playback sounds like, then the processing algorithms inside the speaker will adjust the output to clean up the audio. Because of the physics of audio waves, speakers sitting in these confined locations will often sound too boomy or bass-heavy, but Sonos's on-device software fixes those issues, sometimes with results that are staggeringly good. You can do the room tuning using either the mic built into the Era 100, or by using an iPhone for even better accuracy. (The Android-powered version of the room-tuning feature is not as capable as the iOS version. Sorry, Android peeps.)

The tuning feature keeps everything sounding great no matter where you might be forced to place the speaker, based on your available surface space and power outlets. It does such a good job of keeping audio neutral and flat that there were a few times I couldn’t tell which speaker in my tuned testing space the music was coming from. That was a bit shocking, considering that I usually listen on very expensive studio monitors powered by PC-based tuning software, which costs more than the Era 100 on its own.