Choose the system, then choose each room
For an expandable multi-room setup, first use the wired versus wireless whole house audio guide to decide which rooms deserve cable and which are better left wireless. Then my room-by-room WiiM whole house audio build covers the actual signal path, amplifiers, speakers, wiring, and per-room costs. If you already have an amplifier or powered speakers, the WiiM Ultra versus Pro Plus comparison explains which streamer belongs upstream and where the Ultra’s extra inputs and screen earn the premium.