@tcutter No question and I 100% agree with you. I am a WB dealer and am VERY familiar with their products. I just had a customer move from the Discovery3Zero to the Endeavour3Zero and I had said the cabinet would improve performance a little but in the end, same material, same drive compliment, it's going to be evolution rather than revolution. I was wrong. The Endeavour it s MUCH better speaker driven by the fact that there is basically no flat surface in the box.
And yes, the new biomaterial is superior in terms of rigidity for audio but doesn't perform as well in automotive applications where traditional CF is still preferred.

