Dynaudio Contour S5.4 or Confidence C2


I have always been a great fan of the Dynaudio speakers, went from Contour 1.8Mkii to Contour 3.3. I am thinking to upgrade again to S5.4, however confidence C2 is also within my consideration. Any advice on this? Has anyone compared the 2 and can comment on whether the improvement justifies the price difference (about $2k for used pairs).
I am using sometimes Sonic Frontiers Power 3 monoblocks and sometimes McIntosh 501 pair to drive the speakers.
opusone
I forgot to mention I have a pair of ASC tube traps in the corners of the room behind the speakers, and I have the 3.3 toed in. I used a sound meter and a test tone CD that sweeps the frequencies to do a simple analysis of the acoustic response of the room, and selected the tube traps accordingly to target at the frequency range. I know this might not be too scientific, but the bass is quite well controlled that way and the overall effect is to my liking. I am leaning towards the C2 based on the response so far. C1 with subs might be too complicated.
"I am leaning towards the C2 based on the response so far."

If you are happy with the bass response of the 3.3, the C2 could work.

I would avoid the S5.4 with your room size, for sure. Too much bass output.

Is an in home audition a possibility?
Again, thanks for the valuable responses. The bass response of the 3.3 do tighten up tremendously and go deeper with better resolution when paired with high current amps. Coincidently, this is why I fell for the SACD format (relatively to redbook) when played on my APL 3910, SACD just gives you that extra extension and resolution IMHO. I am hoping the C2 bass response would benefit from that too. Unfortunately, I cannot arrange for any home audition. I am located in the San Jose / SF bay area.
btw, note Dyns need 3' or so from the back walls to sound best.

good luck in your auditioning.