Before beginning any measurements, I connected the Kii Control unit to one of the loudspeakers and installed the Kii Home app—v.1.1.27 (build 60)—on my iPhone. When I powered up the speaker, the app found it via Bluetooth, and it allowed me to connect the speaker to my Wi-Fi network. I then connected my MacBook Pro's USB port to the Control unit. Apple's AudioMIDI utility revealed that its USB port accepted 32-bit integer data sampled at all rates from 32kHz to 384kHz. The USB Prober app identified the Kii as "Kii Control" from "Kii Audio GmbH" with the…