I would just like to echo Garfish's point. The Master Couplers may not be "cable of the month" but in my experience they have a particular (almost said unique) way about them that connects you to the music. I recently came across a power cable that objectively seemed to sound almost identical to the Master Coupler and I put them in place for a few days. Then I found that the system had somehow become boring.
This was not an issue of highs being rolled off or any other such tonal abberation or any compression of dynamics, but somehow the music had become mechanical in some indefinable way. Putting the Master Couplers back in place brought a sigh of relief. Seemingly no change to the sound, but the music moved me again. I don't think I would call it PRAT, but more like the Master Coupler doing a better job of preserving the subtleties of the real event. Perhaps Garfish is right and it is about very subtle timing clues, but he is certainly right that there is still something quite special about the Master Couplers.
This was not an issue of highs being rolled off or any other such tonal abberation or any compression of dynamics, but somehow the music had become mechanical in some indefinable way. Putting the Master Couplers back in place brought a sigh of relief. Seemingly no change to the sound, but the music moved me again. I don't think I would call it PRAT, but more like the Master Coupler doing a better job of preserving the subtleties of the real event. Perhaps Garfish is right and it is about very subtle timing clues, but he is certainly right that there is still something quite special about the Master Couplers.