I keep experimenting with cables, as there are no measurements to helps us in this quest.
I live in the country where power is unstable, blowing up led lights occasionnaly.
So I started to look for a surge protector which would not choke the amplifier, as the ifi powercenter did. I got a Niagara 1200 really cheap at the Montreal audiofest.
I only wanted a surge protection. But I wanted to verify those claims about sq improvement. S I made a playlist of well recorded music files on my Aurender disk.
I asked my wife to sit with me during this AB test. Well, to my surprise, she also noticed clear changes. The trumpets in Leonard Cohen My Oh My were more metallic. And the separation of instruments in Mahler 3rd 1st movement by Michael Tilson Thomas was mauch better.
But the biggest change we both noticed was that the volume was much louder, although the level in the amplifier was exactly the same. A big change, more like adding 3-5 db to the amplifier.
Now that was a surprise. The Niagara does the same as getting a amplifier with twice the power, a very expensive option.
Just wanted to share this.
On a completely different subject, I head the MOFI 10 speaker again, in a smaller room with Hegel amp. Amazing image and depth. What an incredible bargain.