Orbitsound promises "a one-box TV sound solution with an integrated subwoofer without the need for additional speakers" with the SB60 Airsound Base, a 5-speaker system inside what looks like a hybrid of STB and soundbar.
Using the company's Airsound (aka "spatial sound") technology, the SB60 produces "sum and difference" audio signals instead of left and right channels to create "a more solid image." It packs two 2-inch front speakers, two 2-inch side-firing speakers and a 5-inch down-firing subwoofer.