The following link is a review of the Marten Coltrane 2 loudspeaker. I found the first three paragraphs very interesting because the reviewer speaks about the importance of properly running in new ceramic drivers. I can say from my own experience with the Piano Diaceras that the more hours I have on them the better they sound. I thought they sounded great right out of the box but what I am hearing now goes far beyond what my expectations were or even what I could have dreamed possible.
Also, I found interesting the first sentence in the second paragraph on page two.
http://www.avguide.com/review/marten-coltrane-2-floorstanding-loudspeaker-hi-fi-90
Also, I found interesting the first sentence in the second paragraph on page two.
http://www.avguide.com/review/marten-coltrane-2-floorstanding-loudspeaker-hi-fi-90