@prof
Thank you. There are so few of us ...
By way of returning the favour, consider shelving made of Panzerholz ('tankwood' in German; a composite of beech veneer and elastomer), or some acetal copolymers, which are notably lossy transmitters of energy. Although I haven't tried it yet, I plan to test plates made of these two materials, bonded to induce constrained layer damping. They are said to have a very different speed of sound (although I keep meaning to test Panzerholz, I haven't done so yet).
I suggest that you DIY the thing and spend the bucks on something with a mechanism known to physics. A mechanism, as a few here will notice.
Speaking of mechanisms, it all depends on the stability of your listening room floor. Mine is on concrete, over rock, many miles from the nearest railway or freeway or heavy industry. So the issue becomes one of stability, which depends on the moment arm; and walls have really big moment arms.
For the makers of shelves, this is a freebee.
Thank you. There are so few of us ...
By way of returning the favour, consider shelving made of Panzerholz ('tankwood' in German; a composite of beech veneer and elastomer), or some acetal copolymers, which are notably lossy transmitters of energy. Although I haven't tried it yet, I plan to test plates made of these two materials, bonded to induce constrained layer damping. They are said to have a very different speed of sound (although I keep meaning to test Panzerholz, I haven't done so yet).
I suggest that you DIY the thing and spend the bucks on something with a mechanism known to physics. A mechanism, as a few here will notice.
Speaking of mechanisms, it all depends on the stability of your listening room floor. Mine is on concrete, over rock, many miles from the nearest railway or freeway or heavy industry. So the issue becomes one of stability, which depends on the moment arm; and walls have really big moment arms.
For the makers of shelves, this is a freebee.