Polk Audio React Sub vs Sonos Era 300
Side-by-side on the specs that matter, with category winners and an opinionated take to help you decide.
This choice is between a dedicated subwoofer to enhance an existing system and a premium smart speaker that stands alone.
Pick the Polk Audio React Sub if you already own a compatible Polk system and want deeper bass without replacing your setup.
Pick the Sonos Era 300 if you're building a new, high-fidelity smart speaker system and want immersive, room-filling sound from a single unit.
- —The React Sub adds bass to your current gear; the Era 300 is a complete, all-in-one audio system.
- —The React Sub requires a compatible Polk soundbar; the Era 300 works independently with Wi-Fi and voice control.
- —The Era 300 delivers spatial audio and a sleek design; the React Sub focuses solely on low-frequency power.
Full specs
Ask anything — we'll answer with Polk Audio React Sub and Sonos Era 300 in mind.
Pindear may earn a commission when you buy through these links. Winners are determined by numeric spec comparisons only; non-numeric features (app quality, ecosystem, real-world feel) are covered in the verdict.