It's the side view of a speaker with no sides - and no back either! Jamo's dipolar Reference R 909 ($15,000 a pair) has two 15-inch woofers, a 5.5-inch midrange, and a 1-inch tweeter. But it doesn't have a traditional cabinet. According to Jamo, this not only eliminates unwanted resonance and coloration but also improves the movement of the drivers, freed from the suspension effect created by the air inside a cabinet. The R 909 does have a front, as you can see here, and it's available not just in yellow but also in red or black.
