I have a Sigma on my integrated, but only compared to factory cable. Upgraded other components from Viper to Sigma V2 NR with improvement. Also, upgraded two Alpha V2 NR to Sigma V2 NR, but I really didn’t go back and forth with this change since I didn’t have the time to do so. I do think that the Shunyata line does show improvement with going up their line. Also, NR is an improvement on non-NR. All best with Denali, or Everest conditioner. Sorry, have AQ balanced interconnects and speaker cables, but not power.