I can recommend buying basotect in two different thicknesses, it worked perfectly for me. 

Thanks for your advise Beosince98.

Do you know the exact thickness of the thin parts en the thick parts?

KolfMAKER wrote:

Thanks for your advise Beosince98.

Do you know the exact thickness of the thin parts en the thick parts?

Unfortunately I do not rememberer. I guess I ordered one sheet with 1cm thickness and one with 3-4cm thickness. 

Thnx.

By the way, is Basotect the same damping material as what B&O is using? 

KolfMAKER wrote:

Thnx.

By the way, is Basotect the same damping material as what B&O is using? 

I am not sure if it is the material they use, but it looks/feels the same and seems to be high quality foam for exactly this application. 

Hi Gerard,

The original foam is terrible as soon as it started deforming.
Please put the right amount of effort in cleaning it away. To my experience, it sits everywhere even where you don't see it at first hand. It is important to get it away from all components, and yes that is a lot of nasty work to do. Also check all the copper traces on the PCB. I have seen copper traces 'eaten away' and disturbing for instance the Auto Standby switching. 

Here's a picture of the foam set in all the pieces (original B&O).

And here is a picture where you see all pieces in the right place in the speaker casing.

So the 'round' piece goes around the bottom side of the bas reflex pipe. The middle piece is waste, is not used.