ADD-Powr by Coherence Systems --- Power Conditioning Products


Recent research into power conditioning approaches and products brought ADD-Powr to my attention. This company, and it’s products, were previously unknown to me.

The company, Coherence Systems, is based in Santa Monica, CA. and has been in business for some time.

An introduction and general overview can be found within their ’About Us’ page: https://add-powr.com/about

Nordost (in 2008) purchased the QRT technology that these folks developed.

Bill Stierhout is the proprietor / owner and the brains behind the ADD-Powr product line.
david_ten
Indeed. I have a Wizard in my system and it performs quite amazingly in my system. The music presentation is greatly improved, harmonically enriched. It is an amazing product as there is nothing like it. Harmonic resonance through the AC line.
That offer is a great inducement with a complete 30 day money back policy. 
X2 on board. X4 coming to replace the X2 🙂

Nordost QB4/8 and X2/4 is all one needs to get incredibly great sound.

Make sure you install a QS red fuse and install a AC cable that is worthy of such a fine machine.

ADD-POWR Sorcer X4 review by David Robinson / Positive Feedback:

https://positive-feedback.com/audio-discourse/impressions-from-an-editors-notebook-part-1-add-powr-s...

"Cutting to the chase: Regardless of which of the four systems was in play over the past 8-10 months, the performance gains brought by the Sorcer X4 were immediately apparent. I heard greater detail in every source that I tried, both analog and digital. Dynamics were improved, and the noise floor dropped. Even with other system enhancements in the listening room, there was an additional performance gain that brings to mind the emphasis that some mean when they speak of “a greater blackness” in their systems…a loss of noise, and an improvement in the SNR.

It was as if the entire listening environment in our listening room had been brought into a greater harmony, resulting in greater relaxation while listening, and a smoother path to connecting emotionally with the music. A new effortlessness, and a natural ease, made the experience with the ADD-POWR unit really desirable. And the result was confirmed on four different audio systems of unquestionable virtue. Every time, the Sorcer X4 made its presence…and the absences that its presence brought…quite obvious. Don’t think so? Try removing it from your system…."

@debjit_g
  Has anyone used ADD-Powr products with PS Audio latest re-generators, like the P12, P15 or P20 ?
I am using the X4 with the P3. The X4 must be plugged into a wall outlet and NOT into the P3. Doing the latter will be an utter degrade - the sound is harsh and high frequency glare. Installing X4 directly, unimpeded into the wall outlet on the same circuit is a HUGE change!
Stunningly beautiful sound is the result.
Therefore, with the ADD-POWR technology in parallel to, or precedes, the PS regenerator, then very good things happen. Very compatible! 

For such a novel product to be conferred Brutus Award 2021 honors is no small feat.
http://tweekgeek.blogspot.com/2021/07/qsa-fuse-add-powr-boooooom-in-good-way.html