A EUREKA moment and approaching Audio Nirvana
OK so after doing most of the known upgrades on this thread to my Gyrodec/Orbe which has made as I reported previously a great improvement in clarity, separation and detail I was still not happy by one particular aspect of the deck. This is basically down to the poor design of having the pylons screwed directly into the feet, which basically creates a direct coupling path to the chassis and bearing. A perfect way to transmit vibrations to the platter and arm. The one change on this thread I am waiting to do is to replace the feet with the rubber ones, however before I did this I wanted to confirm something for myself.
So this morning I got a marble chopping board out of the kitchen that we hardly ever use and it just happens to be the right size to sit a Gyrodec on top. I also took 4 sorbothane isolation semi-spherical feet that I already had and the result is below. By the way the four of them are the right consistency, you need to purchase 30 or 40mm diameter for the weight of the marble and TT, check the weight of your version Gyrodec, Gyrodec with Orbe platter, and Gyrodec or ORBE and also whether it is SE or not. This is important for the decoupling to work.
So the result is that bass is better defined, instruments have more clarity, the sound stage is clearer, this was very apparent on orchestral music as I can now pick out aspect of the orchestra clearly. I listened to several tracks I regularly use for test listening and in each case there is a significant improvement, in some case aspects of the mix I had not heard before I could now hear.
What is happening here IMO is that vibrations previously getting to the platter/cartridge have been lessened and so there is less colouration of what the stylus is picking up and hence better musical extraction from the groove and improved reproduction.
This definitely works and is IMO another big improvement, and for the cost is a no brainer, if you do not believe me give it a go.
The good news is the cost to do this is £20-25 with postage. If you do not like marble then you could try slate or a similar hard product, but each will have its own dampening properties and will have a resonant frequency of its own, which may have an effect on the end result, you just want dense and heavy.
I will be doing the rubber feet as well and I think that this will be the icing on the Gyrodec cake!
By the way the white bits hanging down from the marble are just the old feet and are not touching the acrylic shelf, I will remove these at some point.
https://i1339.photobucket.com/albums...soqoz0txw.jpeg
https://www.ebay.co.uk/itm/Extra-Lar...4AAOSwKfVXKfnN NOTE this is 30cm by 40cm, a larger one 30cm minimum by 45cm minimum would be better IMO.
https://www.ebay.co.uk/itm/SORBOTHAN...u3Uq_sCRn4HYyQ