I spent quality time at the RMAF with the VIVO cable and my beloved Ether C's comparing it to my cables, a Moon Audio Black Dragon and MIT Vero. Mr. Speakers and Mojo Audio had a private quiet room upstairs run by Ben of Mojo Audio who's DAC and music server are phenomenal. There was a bunch of amps to try and Mr Speakers entire lineup.
The Vivo had a more detailed, textured and punchy bottom end than the Black Dragon, a bass monster, stand up bass had more growl and drums more slam.
The Vivo had greater clarity in the mids and highs and a larger and more open soundstage than the Vero a staging champ. While the differences weren't huge, they were significant enough that I'll be investing in a Vivo cable when funds allow. Thanks Dan.