Ceramic insulator cone under phono stage shocker!

I have used small ceramic insulator cones underneath my phono stage for quite some time.
Previous phono was a Gold note ph10 and it did not make ANY audible difference I could detect which way up the cones were so I had left them cone upwards.

When I changed my phono to a Manley Chinook I just left the cones same way.
This afternoon I decided to flip them over so cone down just to see.

I honestly could not and cannot believe the difference!
I may have lost a smidge of low bass but everywhere else is improved in spades.
Much more detail, resolution, air, imaging, dynamics.
Just completely shocking how much better a small change has made.

But I am perplexed why such a huge change on the Chinook where I noted nothing on the ph10?

Any theories here?
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Showing 3 responses by boxer12

Cool stuff Elizabeth / Thanks 
geoff wins the internet today (LOL)...
"That was around the time I would require blindfolds before entering the room. Which, thinking back now seems a little excessive"

BTW, I'm also a fan of the DH cones 
I have good results with DH Jumbo Cones under my speaker stands (points down) & Isoacoustic pucks between the speakers & the stands. Always looking for improvements, but this combination works well so far. The speakers are Wilson Cubs & the stands are Sound Anchors. FWIW the combination of speaker & stand is 150 lbs. I’ve tried the cones in both directions & there is no contest. I’ve also tried various spikes under the stands. Again, the DH cones win. BTW, the stands sit on a slate/cement floor. Just saw a mouse run out from behind the rig... gotta go, crap.