Having owned 3 different Dynaudios including their studio monitor BM6 and listening to almost all their speakers in different demo rooms (excluding the Master and Consequence), it was clear that 1.3SE was their best monitor this side of C1. It was better than 1.4 and some people think it is more musical than Special 25 (I have not heard S25). BTW, my last Dynaudio was a 1.3SE which I used for about 2 years. When I was upgrading, I looked at C1, no doubt it was more transparent and a more exotic sounding speaker. The Esotar2 tweeter is the best I have ever heard, better than any Scanspeak revealetor or ring-radiators. But I still thought the 1.3SE had a more neutral tone. The C1 had more of the "Dynaudio" house sound which to my taste was too much of a signature. Having said all that please do not compare the 1.4 to the C1, they are at different levels especially when you feed the C1 with quality electronics.
