It's official: Harbeth is in the process of updating all of its loudspeakers. The company has been working behind the scenes to make refinements to its existing speaker lines, denoted by the XD suffix. One of the first available such designs and the subject of this review is the new Monitor M30.2 XD. It's effectively an update of the M30.2 40th Anniversary Edition, which in turn was an update of the M30.1, and the M30 which in turn was a significant refinement to the original BBC LS5/9 upon which it is based. With each new model has come sonic improvements that are the result of decades of research and finessing.Read more here: https://www.stereo.net.au/reviews/harbeth-m30-2-xd-loudspeakers-review