Caphill - Too bad you are in Seattle area. I am in central OR. It’s possible I could drive up sometime however.
I exhibited at RMAF a couple years ago and there were Wilson speakers in the next room driven by Vivaldi stack and the other side was Scaena speakers driven by Vivaldi stack. I listened to both. My Overdrive SX DAC was superior to both of these IMO. It’s even better now and comes with integral Ethernet interface which delivers extremely low jitter:
https://www.audiocircle.com/index.php?topic=156409.0
What digital sources are you using to drive the Vivaldi stack?
Steve N.
Empirical Audio