How much difference between Dynaudio C1 & Contour 1.3SE?


I own a Coutour 1.3SE for a couple of years. I am now considering upgrade plan. Dyna's C1 is one of my planning choice. I used to listen to classical music with the tendency of thick sound (not fat or chaos in bass.). Does anyone has good experience and able to share his knowledge with me? My amp. is Audio Research SP-3 Pre (tube) and the Accuphase A47. Tks in advance.
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Dear Sirs,

Thank you for your kind reply. I have a more concrete image about C1 now. It seems 1.3SE will required more power to drive.  Though I have changed it with Accuphase A-47, but it sounds like a bass is short somewhat....  I am now trying to find an adequate  pre to get better sound, do u have any good idea... Tks.

Simaudio moon p5 / p5.3 / 350p.

i used my 1.3se and  c1 with 350p and 330A: excellent music, build to last.

I am also considering C1 for replacing my 1.3SE with but keep reading about C1 been more polite so not sure what will do. S25 and C2 are also on my radar as I like my rock music.

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I wouldn't say the C1 is more polite but more resolving. As far as the S25 it was a specialty speaker and with a more forward/lively sound. C2 is still a 2 way and really a pair of C1's in a larger cabinet with the DCC