According to historical dependencies, what aspect of home infrastructure was gated for the widespread adoption of wireless multi-room audio?
Reliable, high-bandwidth Wi-Fi coverage throughout an entire structure.
The mass appeal of wireless multi-room audio systems was intrinsically dependent on the maturation of general home networking infrastructure preceding the early 2000s. Before this time, robust, high-bandwidth Wi-Fi was not universally available or dependable across sprawling, multi-story homes, which had previously relied mostly on phone jacks or coax runs. A system promising synchronized music across various locations, like the backyard or an upstairs office, fails if the underlying wireless signal is unreliable, leading to packet loss and stuttering audio. Therefore, achieving reliable performance necessitated industry-wide improvements toward creating better whole-home mesh networks.

#Videos
Les Paul Talks About The Birth of Multi-track Recording - YouTube
History of Audio Technology with Peter Moses - Webinar - YouTube