Sonos has spent years refining its ecosystem, and this 5.1 setup is the payoff. The Arc, Sub, and two Era 100s don’t just play sound—they build an environment. You get the precise, upward-firing channels of Dolby Atmos from the soundbar, the physical punch of the Sub, and the true, discrete rear channels from the Eras. It’s a system designed for immersion, not just volume.

In practice, the separation is remarkable. A helicopter circling overhead in a movie actually tracks across your ceiling. The Sub handles the low end with such control that explosions feel pressurized, not boomy. For music, the system shifts seamlessly, using all five speakers to create a wide, detailed soundstage. You control it all through the Sonos app, your TV remote, or voice commands, and it connects via Wi-Fi for stable, high-quality streaming.

The investment is significant, and the setup demands a room that can accommodate wired power for all four satellite speakers. But once calibrated, the system disappears, leaving only the sound. It’s a permanent upgrade to your living room.