Cables for sure matter I owned a Audio store for10 years and many times they would say buy a $40 k audio system but then only$2 k on audio cables,
I would then have-to prove by letting them borrow , at least spend at least 10-15% of the cost of your audio system on cables , power cords too count just as much at getting the most out-of your Audio system . Now isnot the time to be frugal .
I tried long ago blue jeans cables and Mogami , it okay best ,
for example buytheWireworld Eclipse speaker cable ,and interconnects
that’s maybe $2500 $1500 for a 2 m speaker cables , and 2 pair of interconnects , before discounts ,these are a major upgrade .
power cords what do you have there ? At least buy Pangea sig mk2 power cords
under $300 each these use Cardas top Copper wire , a good value . Everything counts ,by being frugal you are greatly restricting the potential of your detail, sound staging and imaging . Mogomi is what I use for practice on my guitar , nothing more , Audio cables can be very expensive, but what I recommended is average price between10-20% of the cost of yourAudio system is a good average to spend .
in part youget what you pay for .