"We spend so much money on sympathetic vibration (mostly trying to kill it...tone arm design, speaker cabinets, component chassis, etc)...and then to turn around and say that injecting more of it (even if in an attempt to control it) is somehow better than none. To me simply ’adding’ resonance, no matter how pleasant it may appear to be on **most** musical material, will almost certainly add something that is clearly undesirable to the sound at least some of the time. Far better off to stay with the original signal, IMO."
More sympathetic I could not be. Lol But seriously, these devices are not adding resonances as you so alertly suspect. Recall that waves, even acoustic waves, interfere with each other, thus by interfering with unwanted resonances one can eliminate or reduce them. Far better off to get rid of bad resonances, no? It’s not really like banging a sauce pan with a spoon whilst music is playing. You know, things like standing waves, room echo, reflected waves...the choice is up to you. Of corpse, it all depends on where you put them. You can put them in the wrong place.
More sympathetic I could not be. Lol But seriously, these devices are not adding resonances as you so alertly suspect. Recall that waves, even acoustic waves, interfere with each other, thus by interfering with unwanted resonances one can eliminate or reduce them. Far better off to get rid of bad resonances, no? It’s not really like banging a sauce pan with a spoon whilst music is playing. You know, things like standing waves, room echo, reflected waves...the choice is up to you. Of corpse, it all depends on where you put them. You can put them in the wrong place.