SVS Subwoofer Isolation feet. Will I lose bass?


Most of what I see about subwoofer isolation has to do with minimizing rattles or bothering the neighbors.  But what about a sealed subwoofer on a concrete slab?  Would these dampeners not "dampen" the bass as well?

My setup...  Dual SVS SB16s on a concrete slab.  I don't have a rattle problem and the room is 20ft tall so I can't afford to "lose" bass because of my shakey rubbery feet.  

I've read and seen many great things about these but I have a hunch it would hurt a sealed sub on a slab more than help.

dtximages
Thousands of audiophiles isolate their speakers and subs with spring-based iso devices. And guess what, they ain’t amateurs. This isn’t the 1980s any more, guys. Wake up and smell the coffee! ☕️
It's been said here perhaps hundreds of time: watch the Townshend Audio YouTube videos wherein Max Townshend demonstrates the effects of installing a set of his Seismic Speaker Podiums between a loudspeaker cabinet and the concrete floor they are sitting on. THEN ask questions.
Actually the speakers move more without isolation. The very low frequency seismic type forces are causing the entire building to rock back and forth. The idea that speakers rock back and forth on springs or wobble is a f-f-fallacy. It’s the opposite. That’s the whole point of isolating anything. Hel-loo! That’s why electron microscopes are isolated on spring systems, so they won’t move whilst photos are taken of the sample. It’s a mass-on-spring SYSTEM. It’s not rocket science, guys. 🚀 That’s how they were able to detect gravity waves with the amplitude of an atomic nucleus - by isolating the optics and electronics so they wouldn’t move.

It might not be obvious to the casual observer 👀 but there is a limit to how big and heavy speakers can be due to center of gravity issues. BUT those limitations don’t apply to subwoofers which have relatively low centers of gravity. So, springs can go directly under the sub without all the rigamarole needed (a la Townshend Iso device) to get the springs in a wide pattern so the speaker will be stable.