If Nordost and AQ Speaker cables had a baby?

Look into the Cerious Technologies Graphene Matrix speaker cables. There is a 6’ pair on a used marketplace that I have no affiliation with selling for $550. These cables are phenomenal for the price and will beat out cables in the $3K range in my opinion. I am a dealer for Synergistic Research and DH Labs, and I do not represent Cerious Tech. But I have tried them, and they fit your requirements f body, speed and clarity and are well worth the money. That said, beware, they are incredibly thick and heavy as they have ceramic and graphene baked into them.

I had the Matrix and exchanged them for Zenwave SCR11. The Matrix are too warm sounding in comparison. The Zenwave have just the right balance. Used around your price point.

Silversmith Fidelium is definitely the answer. All the details of the Nordost, but with the "flesh and bones" of Cardas Clear Beyond. (haven't had enough time with AQ to really compare, although the Clear Beyond did outperform a pair of William Tell)