Lots of companies make bold claims about their cabinets being low resonance or inert. Few actually prove to be in reality. Check out Theil's claims about their cabinet on their website(unless they removed them since I last read) on the new flagship, CS 3.7, and then view the actual amplitude of cabinet vibration in the Stereophile measurements made of it a couple of months ago. They barely measure any different in regards to cabinet vibration compared to any other average cabinet.
-Chris