Hi Mike,
Thanks for chiming in. Prior to posting a question here, I have searched the archives and found that you are the only one who have bought the Duke's and used them for your rears. Since you already have the formidable MM3's as the mains I doubt you would listen to the Duke's in 2-channel so I thought of trying my luck here instead.
So the Duke's are impressive in 2-channel. It's good to hear that from someone who owns a state-of-the art system with extensive knowledge and experience in audio. The use of Accuton ceramic drivers in these speakers spells something and the build quality especially on the high-gloss units has piqued my interest. I may consider the Duke's sometime next year(if nothing goes wrong) and those Ellington sub-bass units will have to wait cos both of them together will entirely blow my budget. Another serious contender to the Marten Duke's are the Dynaudio C1's but I am intrigued by this small little quality Swedish speakers and was curious to know how a ceramic tweeter that extends up to 40kHz would sound like. It would be great if they can further improve on my already excellent PMC speakers.