I have Vandersteen 3A Sigs, and the bass enclosure is sealed, but I'm not sure to what extent the "active acoustic coupler" results in a different transfer function--I think it shares the same enclosure as the 8" woofer, but I'm not 100% certain.
I think Yogiboy was making a (rather funny) joke, referring to the cutaway photo illustrating the guts.
I think Yogiboy was making a (rather funny) joke, referring to the cutaway photo illustrating the guts.