JL Gets a Grip

Why is a handle protruding from this cutaway mockup of JL Audio's Fathom IWS in-wall sub? It's to demonstrate how the enclosure floats in a padded chamber, thus reducing bass-ruining resonance. Fathom IWS is available in two versions, one with a single amp and cabinet ($2500) and one with dual amps and cabinets ($4500). Both 2x4 and 2x6 construction are accommodated. This product was first demonstrated at CEDIA two years ago but is finally shipping this year.