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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

Showing 2 responses by sadono

sadono
97 posts
 
@danny2323

They are similar outside of the transformers/coils and number of "QRT" units. This affects the conditioning of the power the units receive, and ultimately the sound. Bill's original QRT units could be tuned by cleaning the power it was fed with power conditioners and power cords, and this seems to be similarly true with these new units.
sadono
97 posts
 
@david_ten 

How are the Corelli and Uberbuss integrated into your system?
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