Help with ringing bass from Dynaudio C1


I recently replaced a pair of Silverline SR17.5's with some Dynaudio C1's. I love the Dyn's, but one thing is driving me crazy: on some passages with a deep bass drum (e.g.,Young People's Guide to the Orchestra on Mr. Britten's Orchestra), the bass starts ringing, obliterating other frequencies and sounding very much out of control. I have tried putting an acoustic panel in back of the speaker. That helps some, but the bass is still resonating too much. It sounds like one note in particular, but I can't say for sure.

System:
PWD mkII via ethernet bridge
Bel Canto Ref 1000M
Audioquest Sky XLR, & Volcano speaker cables
Audience AR6T conditioner
alsteinnj
((((Now the bigger challenge: how to get rid of bass resonance in the den without getting divorced?))))

Same answer I gave you before, for the 2nd part of your question, its the same answer again just insert spouse instead of speakers.
Hope that works for you.
Cheers JohnnyR
Sorry Johnny, wasn't quite sure I understood your post. Did you mean the OP should insert his spouse inside the speakers?? If it works for the OP, can it be done with other speakers? If you know how to do it, I'll be in Verona in a heart beat.
Hi Bruce
I would try the Lower port first...
If that doesn't work try this known successful alternative effort.
Get Missy hand bags from either Fendi Coach Gucci LV or Burberry don't forget they know if its genuine like a blood hound.
Try one first and another every 2 weeks or so until Missy is submissive.

Nows your chance to put on your big boy pants
and tell her your all ready for those full range sealed bass Big boy speakers.
Cheers JohnnyR
Since it is the room you will need to try moving the speakers around. I would expect there is node that is getting excited. Have you tried any corner bass traps or acoustic treatments? Where the corners meet is where bass build up can happen.
Acoustic panels behind the speakers should do the trick. You can get some very attractive ones these days for not too much cash.