My first power conditioner...

@bgpoppab..............................

good choice on the Shunyata.  I use 3 Shunyata Hydras (discontinued) over 2 systems and my systems are dead quiet with great dynamics.  All Shunyata conditioners are NON current limiting. 

@stereo5  
Thanks. This is a return to Shunyata in a way. I had a pair of their NR line power cables on my amplifier and Marantz at one point. The level they dropped the noise floor to absolutely floored me. Enough so that I was almost uneasy with it until I realized what I was (or wasn't I should say) hearing. 
The D6 is still considered part of the Hydra line. They are still using the name.
I had considered buying a used Triton V1 or Denali. They can be picked up for around $2200 to $2500 now, but Caelin used the tech and performance features from both to create this. I saved quite a bit and according to Richard at Shunyata it was a toss up between the D6 and Triton V1. That's saying quite a bit considering I believe the Triton V1 was $4000 new. 
A word about Richard...
This guy was UNBELIEVABLY helpful! He answered and returned calls after hours, text messages on a Sunday etc. I'm in my 50s and in all my life have never seen that from ANY company. 

@bgpoppab...…………………………...

Shunyata does have great service.  I called once asking about a power cord I purchased used and Caelin answered all my questions.  I use all Shunyata power cords as well except for my SACD player which I use an Acrolink cable.  Eventually, I want to go to 1 larger conditioner and 1 smaller one.  I will wait a couple of years until the new ones out now will be selling used for half price.