Probably needs clarification, carbon fiber comes in a variety of configuration, resin family, Bucky balls, graphemes, etc
the carbon in the CT and 7 drivers, with co-bonddd balsa core is of a particularly high stiffness aerospace grade.
engineering the driver to be pistonic and crossover is part of the magic.
like Richard said last eve “ I plan to spend the next ten years getting the pistonic drivers down in cost so more Vandersteen models can incorporate them and more music lovers benefit.
you can google his rather lengthy video showing laser analysis of in phase and out of phase breakup modes.....
Bob - he had a hearty laugh hearing about MXR powering VLR !!!!!
fun