The only benefit is if you have patchy wifi. If you have a weak wifi signal, or interference from neighbours wifi, you’ll get packet loss and latency which could result in streaming issues. Like, the music stopping and caching for a second or two. If your wifi is fine, use it.
Streaming music uses fuck all bandwidth. Ethernet is recommended for streaming 4K video for sure.
The software version is expensive compared to other ways to have Dirac.
The Dirac Live Processor (the PC/Mac software version) costs US$349 where as a Minidsp DDRC-24 costs US$400. You get more flexibility with the external DSP option and end results are identical.
You’ll need to buy a UMIK-1 mic for either option as that’s needed for the initial setup. It’s $50 when bundled with the DDRC-24 or $79 bought individually.
Minidsp let you transfer Dirac licensed between their devices.