Most WiiM Amps will have two speakers, some will have 4, connected in parallel. I plan on doing this for several WiiM Amps placed throughout the house - one in the office to serve the office/living-room, one in the kitchen to serve the kitchen/laundry/breakfast nook, and one for the patio speakers, and then an Onkyo receiver for the family room that is Chromecast built-in compatible. I'll be using Chromecast built-in to build a speaker group for the whole house.