R was still working on his review at the time I was scheduled to measure the Merging Hapi MkII, so Independent Audio loaned me a different sample for the testing. This sample had the serial number H95861 and was running firmware version 1.5.1b55774. I followed the instructions in the quick-start guide to download and install both the Merging MTDiscovery app and the RAVENNA/AES67 Virtual Audio Device (VAD) driver on my MacBook Pro. After I connected the Hapi to my router, the app found and identified it and opened its local control webpage on my browser. This page allowed me to select the digital input—AES3 or S/PDIF—set the maximum output level, choose
