Lifters ForGetting Cables Off The Floor, Worth It Or Snake Oil

@audiopoint if you take a look at my virtual system https://systems.audiogon.com/systems/5707#&gid=1&pid=31 (the V trace in the set of the graph traces from the accelerometers in my Herzan platform) you will see clear and compelling evidence of seismic activity (in this case most likely road noise and construction) and the effect of eliminating it. In this instance the benefit is felt for the turntable but I have all of my equipment isolated in a manner that addresses this insidious (and readily noticeable once you hear it’s absence) source of interference.

I have no particular axe to grind as to what method you use to address low frequency interference but denying it exists, or that its impact is audible is just plain wrong

Addendum: there are many reason why isolation is effective for audio systems. The reasons that are perhaps the most obvious are, in no particular order, (1) mechanical feedback from speakers transmitted via the floor, the resonant frequency of tonearm, cartridge and platter is around 10-12 Hz, well below the lowest frequency of speakers but not (rpt not) below that of seismic low frequency vibration, therefore vulnerable to it, (3) the tiny lateral spring system that is part of the elaborate servo system that allows the laser to track the data spiral has a resonate frequency around 8 Hz that is subject to being excited by low frequency seismic vibration.

If you're actually worried about seismic frequencies worming their way into your rig, you possibly need to increase your meds or get another hobby (Balsa wood ship modeling? Needle point? Live concert sound mixing?). I know, to geoffkait my silly Pro Audio/musician background renders my opinions as irrelevant as a bag of crystals, but even with that handicap I try to get by.

Speaking of worms how did you manage to worm your way into this thread? 🐍

Active platforms cannot see into the future to react to events that have not yet occurred. Active devices respond in Milli seconds so their rise time can never trace a real time event. Active platforms react to motion with counter motion of their own. Counter motions in both active platforms and suspended platforms average and blend all shear waves in mass. Polarities of shear are fundamental to all things that vibrate. Two things that contains vast and continual amounts of shear are vinyl records and any loudspeaker. To counter either of these audio elements with motion canceling, especially after the real time event has passed reduces efficiency of the device and serves the retention and storage of interfering energy which is added back into the signal path.. Tom