Thiel Owners

last night re-listened to my noise with the grill off and confirmed it's vibration coming from the passive radiator. I can stop it with my finger. Nothing seems loose on the outside though, so I took off the woofer and tried to feel around on the inside.

First let me say these screws have not been touched since I bought the speakers new and the heads were partially deformed from installation, I guess. Also it appears one was never installed - just an empty hole. They came out OK, but one ended up so mangled it's now unusable. Fortunately I have a few screws lying around that work. 

OK so as vair68robert described, the flat rubber ring was not attached to the main foam cover. It's held in place at the outer edge all around though and it does seem to lay flat. I think it could be glued down (with this?), but I'm sure I will make a mess of this project because it's on the inside where I can't see anything.

But I can cram my phone in there and take pics, resulting in this mosaic. Not as beautiful on the inside! But unless anyone has a better idea, I might be able to attempt the surgery this weekend.

cowhorn

Welcome! There are a few fans and owners of Model CS 2.3 speakers. Good move by replacing the Denon AvR. Your room is quite large. It could be a case of the front end not providing enough head-room? A pair of CS 3.7 loudspeakers would flourish in a room that size. Something to consider if you continue to enjoy Thiel Audio sound. I look forward in reading more developments.

Happy Listening!

barnett 

contact Rob at Coherent for instructions on how to remove the radiator.  It doesn't take much of a gap in the rubber surround to cause the flutter noise .  The glue I used is from SpeakerWorks.com .  Also make sure that the screw(s) that you use are non-magnetic . 

Good Luck

Rob 

cowhorn

2nd Note;

A Thiel speaker is dependable like a Toyota, exhilarating like a Porsche. 
 

Happy Listening!

^^^Thank you!