Halcro, I think you are entirely right about structural borne vibrations but turntables have many equally difficult problems all of which rob the music of its magic.
About two years ago I discovered the new StillPoints isolation feet, component stands, and racks. They are intended to absorb the internal vibrations as well as the structural vibrations. They have replace the Halcyonic active isolation platforms that I had used, especially under my turntables. But there are also: speed accuracy, resistance to the impact of the music on the speed, slap echo of ribbons used to drive tables, pulse of ac motors, vibrations through the bearing, etc. Gradually, I have come to the conclusion that the idler wheel turntable, especially the Lenco, have the greatest realism, so I am moving that way.
I think many are selling vinyl short, but no totally optimizing their turntable, arm, cartridges. My new table will also allow me to have two tonearms with one having a mono cartridge. Long ago I realized that while I liked the soundstage of most stereo records, monos often are the most real.
About two years ago I discovered the new StillPoints isolation feet, component stands, and racks. They are intended to absorb the internal vibrations as well as the structural vibrations. They have replace the Halcyonic active isolation platforms that I had used, especially under my turntables. But there are also: speed accuracy, resistance to the impact of the music on the speed, slap echo of ribbons used to drive tables, pulse of ac motors, vibrations through the bearing, etc. Gradually, I have come to the conclusion that the idler wheel turntable, especially the Lenco, have the greatest realism, so I am moving that way.
I think many are selling vinyl short, but no totally optimizing their turntable, arm, cartridges. My new table will also allow me to have two tonearms with one having a mono cartridge. Long ago I realized that while I liked the soundstage of most stereo records, monos often are the most real.