This is truly disappointing, there is no datasheet for this product so any meaningful discussion on how it could be superior is not possible.
A lot of fancy sales lingo though
Graphene is an interesting material but at the end of the day it acts like a metal shield, it has very low resistivity to move the noise energy elsewhere but it is not dissipated,
inorder to get the best performance the graphene sheet has to be grounded
https://www.electrosmogshielding.co.uk/product.asp?P_ID=742&CAT_ID=102&numRecordPosition=1>font size=
The manufacturer makes clear the need for a grounding strap because of the nature of Graphene.
RF Attenuation look awesome compared to the Fairrite M6 and the 3M combined!
...But you need to connect the shields on every chip with wires and it creates a new set of problems.
Graphene is not the only game in town, metal loaded epoxy paint can give even better performance.
MG Chemicals these make products
http://www.mgchemicals.com/downloads/comparison-tables/Water-based Conductive Coating Comparison Chart.pdf
First column is ferrite loaded nickel paint, the others are epoxy silver and epoxy nickel
The ferrite paint resistivity is 20X that of the other metal paints (0.027 vs 0.00053)
This means ferrite converts 20X more of the noise energy to heat, once the noise energy is dissipated it is gone,it is now thermal energy that ends warming up the room by a little bit
The metal paints have very low resistivity so it pushes the noise to the local ground, ground is like the sewer system of the DAC, it still has to move the crap back to the electric utility.
The DAC has to be able to push back to the tap of the local substation transformer and the power plant, eventually the sewer is going to backup if the DAC cannot send all this crap fast enough to the real ground on the generator itself
With ferrite a lot of that unwanted energy is gone and this considerably eases the pressure on the electrical ground from the listening room all the way back to the generator
In really crude terms the ferrite absorbers eat up 20X of the noise before it reaches ground, graphene and metal shields channel nearly all of it untouched to the main sewer outlet aka ground.
Using the DSD256+ rates the noise shaping adds an increasing amount of aliasing noise that has to dealt with, the higher the rate, the closer it is to full scale
On DSD256 it is about 2/3 fullscale, meaning the noise can be louder than the audio signal.
Ferrite absorbers are so effective that they do not need to be grounded, this is why I use them, people can replicate what I do with a minimum of fuss.
Uptone uses 2 ferrite shielded inductors in your LPS-1
The tendency of some audiophiles to champion big numbers ignores some of the subtlety on what it takes to really make things work.
Again this comes back to the point of having meaningful data and knowing how to use it.
Your comment about the use of ferrite is quite ignorant.