@jumia Due to my inadequate explanation, you have misunderstood which cables I'm wanting to improve. The cables that are the issue are the ones made with the Acrolink 7NP4030 II wire. I am a big fan of Transparent Audio cables largely because of the way that they tamp down the high frequency problems that are very exaggerated to my ear, again due to my hyperacusis. All of my IC's and speaker cable are Transparent. I don't use all Transparent power cords because I find that some components just sound better to me with other cords. I have three mm2 PI -8 power isolators and one mm2 Reference power isolator in the main system.
Re: wall receptacles, of course everything matters, I have both some Maestro and some Oyaide R-0 (un-plated copper) receptacles (on dedicated power lines). I grant you that the Maestro recepts. are not all copper but they work well for some parts of the system.
Re: re-terminating the Transparent power cords. I simply dislike the sound of brass cord ends. Let's face it, Transparent uses el cheapo basic brass cord ends. The gold plated ends on the newer generations are not to my liking either and I figure that they are on the inexpensive side also. For the most part, I prefer un-plated receptacles and cord ends except that I do prefer the Oyaide 004 ends on the Transparent cords. The 004 ends are made with beryllium copper instead of the phosphor bronze that their other ends are made from. Most of the Furutech ends are phosphor bronze also. I hear a difference and prefer all copper ends.
My concerns about bass are about quality not quantity.