Nasaman, I agree with simonmoon. I would suggest using something of as much mass under a isolation system as you can. The reason I say this is because the inertia in the mass under the loaded isolation system you may choose to employ, will help mitigate the joists or bearers if you will from absorbing energy.
The vibration will take the easiest path to dissipate, you might try Townshend for example, or Isoacoustics, or like myself springs on a very solid steel stand (mine are standmounts). Sprung steel is still one of the very best vibration isolators, used in all sorts of vehicles for that very capacity, Worldwide.
Whatever you choose, try putting some mass under your suspension system above your now mass loaded flooring to use it’s inertia to your advantage.
The vibration will take the easiest path to dissipate, you might try Townshend for example, or Isoacoustics, or like myself springs on a very solid steel stand (mine are standmounts). Sprung steel is still one of the very best vibration isolators, used in all sorts of vehicles for that very capacity, Worldwide.
Whatever you choose, try putting some mass under your suspension system above your now mass loaded flooring to use it’s inertia to your advantage.