I Have Airborne Feedback And Never Realized It...Till Now

"The rack is very stable and there`s less vibration on it than being bolted to a large vibrating wall."

The wall racks are meant for an outer weight load bearing wall. If you have a large vibrating wall sitting on concrete it's not an outer wall.....if it is....buy a new house....😜
I'd be willing to bet that vid that miller posted if it was your rack the amplitude running up and out it would shock you coming up through the concrete floor...
If it's airborne your dealing with  ( sounds like it ) you have bigger issues with the room than where the table is....and yes the guys with a nice headphone set up and that's how they listen....It certainly has its positives to it with less negatives to run you around...those high school days late night bedroom listening with headphones at the start of the 70s were much better than just necessity when one thinks about it.....relative to the hoops we jump through now....
The two subs....it can work exceedingly well when done right...
Cheers

Have to say the Townshend guy’s videos make an awful lot of sense. MC is making a lot of sense on this too. Slap your table on one of those platforms and I bet most problems go away - unless maybe your table’s sitting in a bass node/resonance/peak spot for your room? How much have you experimented with moving your rack’s position (I mean just a bit, not into a different room)?

I’ve been into high-end headphones for a while and they’re wonderful but they can’t match nor eclipse a great speaker/vinyl system IMO. The problem is dealing with room acoustics and vibration feedback. When I had a SOTA Star/Nova table (built-in spring suspension tuned exactly for itself), the vibration feedback into it was literally never any worry. Things got a LOT harder when I got a Clearaudio table. But still, I found I didn’t have any airborne feedback issues of note, even with my HUGE Canterbury speakers played loud, once the ground & structure borne vibration was addressed via rack/etc. Then again I also don’t have 3 subs (I know they are supposed to smooth out bass nodes, not make them worse)!

Ditch the Rega, get a Sota and all your problems will go away.

mijostyn....
There`s not much Rega left just the plinth, 24v motor and Neo power supply.

Have to say the Townshend guy’s videos make an awful lot of sense. MC is making a lot of sense on this too. Slap your table on one of those platforms and I bet most problems go away

Right. Here's some more common sense. 

Ever notice how you can hear the music even without the turntable being hooked up or anything turned on? The stylus tracking the groove causes the whole cartridge body and arm to vibrate so much you can hear it.  

It's not that airborne vibrations aren't making it back into the signal. They are. It's that they are orders of magnitude lower in amplitude than the mechanical vibrations already going on. The sound you hear tracking a record are mechanical in nature. You hear the sound, but the source of the sound is mechanically tracking the groove.   

Still more common sense. Airborne vibrations are super easy to deal with. You can hold a 5 gal plastic bucket over the table, this all by itself will eliminate the majority of the sound reaching the table. Add a little acoustic damping material, drop what's left 90%. People talking about a whole different room simply are not thinking things through. All you need is a good dust cover. But one that is not mechanically connected to the turntable.  

I would take a large plastic tote, big enough to cover the whole turntable, line it with OC703. Cut some strips of OC703, place them on the rack. Set the cover on the strips. This will seal the table off from airborne vibration, while the strips will decouple the tote from the rack and the turntable. This will be the equivalent of an isolation room for the turntable. 

Make it big enough so when you get Pods or a Podium for the turntable you can still use the acoustic cover, and you will have a really sweet isolated rig.