The best arrangement so far has been the Sidewinder on the CD player, and the Purist Audio Design Proteus cord on the power amp. This combo was only slightly bright in the top octave and a half, while being very neutral/detailed/high-rez/unfatigueing. Please note that I preferred the Proteus on the amp, INSTEAD of the Black Mamba, while the Sidewinder was on the CD player. With the Sidewinder on the CD player and Black Mamba on amp, the presence region was forward and analytical, bass pitch definition wasn't as good as with the Tiffany cord on amp, and Sidewinder on CD player (this combo is still the most neutral and features the best bass rhythm/snap/jump facor, but I very slightly preferred it less than the Proteus/Sidewinder combo).................The Black Mamba is now on the CD player, and the Proteus is on the amp.........(More on this combo after I've listened enough...BTW, I plug the CD player into a Chang Lightspeed 6400, and the power amp's cord into the wall; there's nothing special about my outlets, or circuits. We have only 200 amp service, and live 25 miles from the power plant, and about one mile from a "substation".)............I will then switch back to the Sidewinder on amp, and then lastly my current "reference" of MIT Z-Cord 2 on CD player, and Tiffany on amp.....................I think that next I'd like to try Synergistic Reference on amp, and ESP Essence on CD player.