For Sonos's reported streaming box to succeed, it needs to deliver the ultimate wireless home theater experience. Here's what we know.

We're comparing two high-quality, Atmos-capable systems — the Sony Theater Quad and Sonos Arc Ultra with Sub 4 and Era 300 speakers — to see which comes out on top.

The new speaker utilizes Eleven Engineering's SKAA wireless technology for high-fidelity audio, providing long-range without ...