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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

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glory
1,616 posts
 
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.

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