The new top section, with its side-facing audio port, is apparently a good chunk of what affects the sound in unison with those strategically placed vents.
His photograph of the factory is a grainy blur: two lines of men at work, blacks and whites side-by-side and facing each other across the assembly line that runs up the middle of the picture.
On the consumer-facing side, an even stronger stamp of approval came from Apple, who in 2010 declared that Able Planet had the best sounding headphones on the market.