I subscribe to the theory that a speaker enclosure, like the plinth of a suspended-subchassis turntable, should be firmly anchored (coupled) to Earth. When a cone diaphragm moves, it does so with all of it's mass and energy moving in opposition to the driver's motor, and therefore to the enclosure it is attached to via it's frame (to which the motor is also attached as securely as possible). That's how it makes sound! Any movement of the motor, frame, and enclosure in reaction to the motion of the diaphragm results in either lost information, never to be recovered, or added information, undesirable in a loudspeaker of course. The people at Herbie's products subscribe to a different theory, and they have "Footers" that allow a tiny amount of enclosure movement (decoupling) when they are placed under a loudspeaker. They claim that the decoupling afforded by their Footers does not result in lost information, while allowing for the absorption of resonances in the speaker enclosure and/or surface it is placed on. Does the Vibefree allow the enclosure to swing in the breeze (VERY decoupled!)? I hope not! I would say that the more the mass of a loudspeaker's enclosure and driver's motor and frame, and the less energy it's cone expends (it's travel) and mass it contains, the more suited to the Vibefree will it be.