Cables for Rogue audio and B&W

Hello AGONers,

I am trying to find a pair of new speaker cables for my Rogue audio/B&W setup. I will list my components below for suggestion purposes

Rogue Audio Perseus Magnum Preamp
Rogue Audio Ares Phono Preamp
Rogue Audio Atlas Magnum Power Amp
B&W 804 Diamond speakers.

I will leave my sources out of the list. The cables I am currently using are Audioquest type 4. These were the first "decent" cables I purchased when I put my system together. I have on loan from the cable company a pair of Kimber 12TC bi-wire and a pair of Wireworld Equinox7 bi-wire. Both of them are a major improvemnt over the type 4 but, the Kimber seems too bright in my system and causes listening fatigue fairly quickly. I am really enjoying the sound of the Wireworld equinox 7 cables. They are very detailed and balanced in my system. I would like to audition a few more brands of cables before I make a purchase. Can you make a suggestion for speaker cables that are a good match for B&W speakers with Rogue tube equipment? I am looking for neutral, balanced and detailed without the harshness of the 12tc. The diamond tweeter in the 804 doesn't agree with the kimber. My price range is around 1k for a pair of bi-wire speaker cables. Thank you all for any suggestions you might have. I hope everyone has a great Christmas and a prosperous new year.