AKG recently unveiled the latest AKG K551 headphone set with large folding earcups. K551 features the Real Image Engineering technology ensuring hyper-real 3D sound. Apart from its high quality performance the headphone set offers the 2D-axis fold-flat mechanism, utmost comfort ear cushions that fit perfectly over the shape of ears which minimized the passive noises. The AKG K551 is available from now on at Harmans for USD330.