Recommendations for Power Conditioner Upgrade From Old Shunyata Hydra 8


I have a 19-yo Hydra 8 with a Taipan cable that I'm considering upgrading.  My recently upgraded system is about $60K in value. I do mostly streaming.  System is:  Levinson 585.5  integrated, Aerial Acoustics 7T speakers, Naim NDX2 streamer with Naim XPS DR power supply, and an old Audio Research CD3 I use as a transport into the NDX2.  The current setup with the old Hydra 8 sounds great.  I've talked to different dealers who say I can improve the sound of my system with a modern-technology power conditioner.  Dealers have recommended: Isotek EVO Aquarius or Sigmas, another recommended Audioquest Niagra 1200.  The world of power conditioners is confusing to me so I'd deeply appreciate your thoughts.  If the sonic gain is there, my budget could be $6K.  Thank you!
paulg24
@paulg24

I am using a Shunyata Sigma v2 XC power cord on the Everest. Again, not cheap, but it's one of those things that once you hear it what it does, you know you don't want to take it out. The Everest is absolutely dead quiet, with an inky black noise floor. I am generally skeptical of dealer/customer rep hyperbole, but in this case, it is justified, at least in my experience. That description from the Shunyata rep is pretty much on the money. The improvements are comprehensive and readily apparent.

I replaced an Inakustik 3500P, which is also excellent but just not on the same level as the Everest, nor should it be expected to be given the differences in price. I have nothing but the highest praise for each of these products.
dweller,
Actually with my Niagara 7000 I found the Hurricane HC power cable sort of tame. My DIY power cable is much better.

ozzy
Thank you everyone--much to consider.
I need to also ask myself, Is what I already have good enough?  Know what I mean?  One can burn up a lot of money seeking the best sound.