I did listen to the Harbeth M30, and Compact 7 prior to purchasing the Dynaudio Special 25. I thought the Compact 7 was a nice speaker but felt the M30 much nicer, especially the upper frequencies, more liquid, more musical, no brightness or grain with brass. I really liked the M30 and can see it being the ultimate speaker for many. I however found it did not have as much wt at the lower end as I liked and after much head scratching went with the special 25. I think all are a great choice but would highly recommend a listen before purchase.