...Hence your post here! I feel it all too well.
Originally Posted by eddieedwards
On my Calyx, I changed out the PS cap for a Panasonc short FM or FC (can't remember which), which brought an added level of clarity. I've also seen WA Quantum chips that can be put on DAC chips or opamps. Good reviews on the results, for not much layout of cash, though I've not yet tried them. I've played a bit with isolation on the DAC, DIY rollerblocks over innertube, with good effect on added naturalness to the sound.
I also added a DC-blocker in front of my distribution block, with positive results for less than £50.
Of course those are all DIY-type things to play with, taking a little time but not much money. If you are not so-wired, ignore.
Maybe, try some speaker cable upgrades from a place that gives 30 days money back if not satisfied.
Theories are not so much answers as questions, to be supported or undermined by experience & testing.
Source: Calyx 24/192 DAC, Laptop w/JRMC. Amplification: Classe Audio 30/70 balanced. Loudspeakers: Proac Response 1sc. Cables/stands: spkr MIT MH-750 / HT Truthlink XLR, Vampire AI2, RFC Pluto, heavy sand-filled Target stands for speakers and Hi-Fi. Bass traps in corners, acoustic panels at first reflection points. Isolation: Roller bearings & cups, inner tubes.