The group was A-Bing different cables, and unbeknownst to them, the engineer running the test swapped out a set of cables for coat hangers with soldered-on speaker connections.

ENGADGET: Audiophiles can't tell the difference between Monster Cable and coat hangers

Underwater cables have been installed in Long Island, in a few test projects in Canada, and in a handful of European locations, but the Hawaii project will be one of the largest and most complicated.

FORBES: Hawaii: Our Very Own Island Nation, Battling Climate Change Via Innovation