I have borrowed a number of sub-$1,500 speaker cables from The Cable Company in recent months. Cardas, DHLabs, Shunyata, Kimber & RSX. I thought the highest value for the money were the RSX cables. They get out of the way—transparent & natural. Not the last level in detail, but plenty. I haven’t decided whether to buy them or spring for some much more expensive Cardas cables.
i have a vintage solid state Krell integrated (re-capped) and Audio Physic Virgo speakers. My interconnects are Cardas Clear Beyond.
Best of luck finding something that works for you.