Either high mass or good suspension can work, question is whether they do in a given situation.
I have one sprung table, a Sota Cosmos, and its is admirably free from environmental vibration. (A good way to test is to get out a test record with a blank side, lower the stylus on it, turn up the sound a bit and walk around the room or even stomp around - if you get nothing through the speakers you are doing a good job of isolation).
I have another high mass table, A VPI TNT, sitting on a heavy stone base about 4' high with a thick granite slab on top, situated near a wall, and it is equally unaffected by room/floor vibration. For suspension it has only four squash balls, one in each 'tower'...and no, I have not done auditions to see if orange dot (slow) or blue dot (fast) sound better than the yellows I have in there, but I intend to do so some day....
Then there are the guys that suspend their tables from the ceiling on bifilar lines so they hang in mid-air - and then stay awake at night worrying about air borne vibrations.
I have one sprung table, a Sota Cosmos, and its is admirably free from environmental vibration. (A good way to test is to get out a test record with a blank side, lower the stylus on it, turn up the sound a bit and walk around the room or even stomp around - if you get nothing through the speakers you are doing a good job of isolation).
I have another high mass table, A VPI TNT, sitting on a heavy stone base about 4' high with a thick granite slab on top, situated near a wall, and it is equally unaffected by room/floor vibration. For suspension it has only four squash balls, one in each 'tower'...and no, I have not done auditions to see if orange dot (slow) or blue dot (fast) sound better than the yellows I have in there, but I intend to do so some day....
Then there are the guys that suspend their tables from the ceiling on bifilar lines so they hang in mid-air - and then stay awake at night worrying about air borne vibrations.