@mayoradamwest where in the Bay Area are you? If you're in SF, you can borrow a couple things from me to try. An upgrade to Mogami Gold for XLR that doesn't cost crazy money would be something like the DH Labs Air Matrix, which also comes in a DIY raw version you can terminate yourself if you're handy. There is also the retro tinned Belden wire which is cheap and sounds pretty good, though I think that comes only in RCA.
TBH with a B+W and Rotel combo, I'm guessing your system is quite bright and you probably want a warmer, less neutral cable to balance it out. BTW since people mention Silverline, I have their SR 17 Supreme speakers in my house and they are superb, if you'd like to give them a listen.