They are actually all different photos. Took alot of looking, but they are different. Pull up a new window and compare them side by side and you'll see a notch where the speakers meet on one photo that you dont see on the other. The lighting is slightly different also.
Usually when shooting something like that you will just mark the edges with something before you pick them up and replace them with another color.
As for the other colors those are different too, and from what I can tell were probably shot a different times.
Usually when dealing with drastically different colors, photoshop isnt the best way to go.
As for the missing port, someone screwed up either in retouching or manufacturing. Someone was probably supposed to retouch in a port hole on a mock-up speaker.
IMPO
