Going back throughout our product ranges, we have often introduced a mark II model of a specific loudspeaker. There can be many reasons for this, however, the main difference should be a component upgrade.  Sometimes we can no longer source a specific component used in the design of a loudspeaker from our suppliers and so we must source new components. When we make these changes in design, the model is designated mkII. MkII models are always to the same specifications of the mkI model, if not higher.