Upgrading the house wiring is the best you can do for your equipment. 1. separate phase (if you have 3 phase system) 2 separate group, 3 high-end breaker, 4 hospital grade outlet 5 good cable(s). 6 multiple groups of cables with the exact same length for splitting power amp/front end 7 Star wired distribution block. (Isotek, Kemp, Wire World).
It is all about lowering the (contact) resistance and separating your system from noise/household appliances. If you are on a budget you can use multiple runs of standard wiring and combine them because the inductance will get lower every time you double the wire per leg. (e.g. 2 x AWG 13 per leg is better then 1 x AWG 11). You can check your combined AWG here:
https://www.wirebarn.com/Combined-Wire-Gauge-Calculator_ep_42.html
Aim for 10 AWG or less, your power amp will be grateful.
Lower inductance is, aside from less (contact) resistance, the second most important part of the job. Star Quad or Helix cable geometries can be helpful with multiple runs of wire so you can create a self shielding type of cable. Don't use shielding on analog equipment or your house wiring. Only use shielding with digital equipment that spits out to much junk/hash.
If you buy fancy cables before you upgrade your house wiring you will always chase the (sub)bass. And if you buy only one fancy cable, put it between your hospital grade outlet and your distribution block. From there the improvements will be more subtle. Some people think the source is more important, other think the power amp is more important.
Budget recommendations: Anti Cables Level 3, Shunyata Venoms. Vovox Sonorus, Audience Front Row. Just my 2 cents. Or go the DIY route if you know what you are doing.
