I'm another one that traded $2000 speaker cables for something much less costly. In my case it was the Grover Huffman cables which cost me about $300 and come with a trial period.
However, I do not believe these cables would fit your criteria of slightly rounded and warm (slightly dark), but they are musical.
However, I do not believe these cables would fit your criteria of slightly rounded and warm (slightly dark), but they are musical.