If you prioritize immersive, cinema‑grade surround and have space for a larger system, the Denon AVRX3800H is the stronger choice. For a sleek, plug‑and‑play experience in a smaller room, the Sonos Arc Era 100 wins on convenience and design. Both support Dolby Atmos, but Denon’s extra channels and higher power give it a clear performance edge.
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