Acoustic treatment

Mijostyn,

You may want to  fill with some volume one of your glass objects with olive oil and then compare. Oils will conduct shear depending on their solid content. Distilled water less than salt water..Origin of olive oils will vary in shear velocity. Tom

It wasn’t misonjin but you’re very close.

Mahgister,
My most recent posts were about your method and obsevations. Tom

Thanks theaudiotweak… But my result obtained only with water are enough for the day and extraordinary... I am very pleased already, the helmhotz resonator are not snake oil,pricing sometimes is, ideas are often implemented with very low cost and sufficient good result... I will not purchase audiophile resonators, I am proud of my cheap ones and astounded... Perhaps I will try olive oil some day to comes thanks Tom for the idea... Thanks also to Geoff for his impulse and astute observations...

Just finished my bass traps and installed them. All I can say now is that I'm a believer!