Looking for Tekna Sonic Vibration Absorbers

you will find ithttps://megasync.top/

 Seek and Ye shall find...

I have 8 of them, just about all new and in unopened boxes. Four areTeknaSonic Vibration Absorber Model C-10 and four are Model C-12. The company sent them to me for review, years ago. Happy to sell them to you for a reasonable price. If you're interested, please let me know. I suppose I would prefer to sell all of them at the same time.

@prof,

One can buy magnetic pads from McMaster-Carr and while they work, they don't quite have the magnetic strength of the originals. Check them out here:

https://www.mcmaster.com/magnetic-pads/flexible-magnets-5/

I actually found my old Tekna Sonic C-10s.

I don't have the additional magnetic pads that you would originally stick on to the speaker to hold them on, though.   I used to put them on top of a speaker and seemed to hear a difference.

 +1 for resurrection...

I own a couple dozen utilized in various locations.
I REALLY recommend you try some Car Sound Deadening sheets placed internally ion components floor, walls and top (at least two layers).
I use the NOICO brand.

If you can reach internal walls of you speakers, that would be ideal.
If you can't (and don't mind the aesthetics) place some on the exterior walls and top of your speakers.

Good luck! I’ve been doing the same but no luck. A revolutionary product that for the life of me didn’t catch on. I have about 40 of them ranging from the C-5 to the C-12 on everything from components to walls and of course speakers.
Someone really needs to bring this concept back onto the market but a very good alternative is the Golden Sound Acoustic discs.