Need Opinions for Different Cable Manufacturers/Cable Designs

@squared80 -

             "... fall back on science and objective facts."

              Let's hear/read some of the that, that establishes/proves this:

     "Get cheap 12AWG OFC cables; nothing else you buy will sound better."

For your set up OP audience is the one I like most. But Nordost Heimdall or Frey might work, Tellerium cables ultra black and above.

Looking to spend up to $2,000 for 3m speaker cables and up to $700 each for RCA and XLR cables. Again, I hope to buy used.

"""I am interested in opinions on the following RESELLERs:

AUDIENCE

DH LABS

PURIST AUDIO DESIGN

SILNOTE

SNAKE RIVER"""

Fixed it for you.

You don't spend that much money for cables if you're not Elon Musk.

Try Amazon the WBC 7awg for your speakers. So many good audio cables under $100 over there you just need to do some research.

+1 on Silversmith Fidelium cable.  I’ve used AQ Rocket 88, Raven Soniquil, and custom cables from Mogami cable to connect my Odyssey monoblocs to my Fyne F-702 speakers.  When I hooked up the Fidelium cables the improvement was simply astounding and instantaneously evident.  They are not inexpensive, but neither is the price stratospheric.  The company has a trial period, but I realized in 30 seconds these were “keepers.”

Save your money on the Fidelium speaker cables and use that money towards IC's. In your list, Audience IMHO is the finest, trailed by Purist. You cannot go wrong with Audience. Neal