When it comes to home theater speakers, there subwoofers and then there are subwoofers. While the picture above looks more like a creatively shaped, unfinished basement, it is in fact a subwoofer...built into the floor underneath audiophile Roberto Delle Curti's custom home theater.
16 woofers provide the low end through 31 foot long tunnels that lead into the media room (he's standing in the subwoofer). We are just thankful that we don't live nearby. Ah, to be an audiophile...bet those cables cost a lot