On top of Gat is Shakti Stone ,Byee QUANTUM SIGNAL ENHANCER and stillponts ERS paper,they are not isolater,they eliminate EMI/EMF.
Yes ,is hansen speaker.
My friend is also gat preamp.
He upgrade to Gryphon mephisto several month ago. And have try on a minusk BM1 platform , that was a big upgrade to mephisto.
Very nice! I definitely like myColosseum on top of Ultra 5s...have not tried the MinusK...sounds like a worthwhile experiment.
Meanwhile on my CJ GAT...i use Entreq wraps around the power cable to reduce emi/rfi and the GAT is plugged into Nordost Quantum QX4, but I have not used ERS paper on top...what improvement did the ERS paper make?
I might give that a try! Thanks for any guidance!