The 40th Anniversary DSP8000 is constructed from the finest materials and all electronic parts are hand-selected for sound quality, while the loudspeaker system as a whole is individually fine-tuned by Bob Stuart. It includes a new, more sensitive dual-magnet tweeter with a new moulded surround, while special calibration allows the loudspeaker system to operate at even higher sound pressure levels than the standard model. 

Driver surrounds feature exclusive machined detail, while the front glass is a special ‘dark ruby’ colour. Special spike-cups are used to mount the head unit and a special plaque signed by Allen Boothroyd and Bob Stuart on the rear of the head units carries the Limited Edition number.