Rushton, I agree with all your tweaks, all easily heard in my system. Oddly enough, you and I seem to be two of the few that don't like the Shatki stones.
Of your list, only the Walker HDL is controversial, and only then because there are speakers they don't work well with. Kharma Exquisite immediately comes to mind.
I got terrific results with Walker HDL on both my Dali Megalines and the Sound-Lab Ultimate before them.
A dozen tweaks that have proven effective for me:
(1) Isoclean fuses (and likely Hi-Fi Tuning fuses when I get them installed)
(2) Cleaning ALL your connections, then treat with contact enhancer (I like Caig).
(3) Add weight on top of (some) equipment. Buy or make your own and see.
(4) Audio Prism Quiet Line (or same effect via other brands).
(5) Best quality jacks and speaker posts. OFC Vampire, Cardas, WBT or whatever.
(6) Precise load for your phono cartridge (and the best resistor for the job).
(7) Keep equipment apart both horizontally and vertically to reduce interaction.
(8) Dedicated lines and good quality AC plugs in the wall and on your AC cord.
(9) Acoustic treatment on all surfaces, some as diffusion, some as absorb.
(10) Texas Instruments EMI shield. I have in wall and on turntable.
(11) Grand Prix amp stands
(12) Most isolators and feet. All audible, some help, some hurt, they all "work."
Of your list, only the Walker HDL is controversial, and only then because there are speakers they don't work well with. Kharma Exquisite immediately comes to mind.
I got terrific results with Walker HDL on both my Dali Megalines and the Sound-Lab Ultimate before them.
A dozen tweaks that have proven effective for me:
(1) Isoclean fuses (and likely Hi-Fi Tuning fuses when I get them installed)
(2) Cleaning ALL your connections, then treat with contact enhancer (I like Caig).
(3) Add weight on top of (some) equipment. Buy or make your own and see.
(4) Audio Prism Quiet Line (or same effect via other brands).
(5) Best quality jacks and speaker posts. OFC Vampire, Cardas, WBT or whatever.
(6) Precise load for your phono cartridge (and the best resistor for the job).
(7) Keep equipment apart both horizontally and vertically to reduce interaction.
(8) Dedicated lines and good quality AC plugs in the wall and on your AC cord.
(9) Acoustic treatment on all surfaces, some as diffusion, some as absorb.
(10) Texas Instruments EMI shield. I have in wall and on turntable.
(11) Grand Prix amp stands
(12) Most isolators and feet. All audible, some help, some hurt, they all "work."