Do Kimber KCAG's sound bright????

It's a complete misnomer that pure silver wire is bright. I run Kimber KCAG from my phono pre to main pre. I also run Siltec MC4-80 (pure Silver) to my power amps. They are neutral and very revealing...not bright. If they were, I'm sure my Wilson Watt/Puppies would tell me so. YMMV

Further I would add that I also use pure silver speaker cables (Siltech LS-180). I feel that those who experience the tonal balance turning bright when using silver cables in their system are experiencing impedance resistence issues related to differing cables and or components.