I am just telling what myself and other users have noted.
Almost all people with a set of 2C like the Vandy sub, and it removes a lot of the power requirement from the amp, so it is somewhat similar in concept to bi-amping.
That “takes it to another level.”… and almost guaranteed to be a higher one.
Fewer noted a high appreciation for bi amping and bi wiring.
But maybe someone on the Vandy forum has better input.
It could also take it to another level, but a level that could be a lower level.
Many others “take it another level” with an upgrade to a different Vandy speaker (from 2 to 3, or Treo, Quatro, etc...)