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 Steirhout is the proprietor and the brains behind the ADD-Powr product line.

The product line is listed here: https://add-powr.com/products

david_ten

Showing 1 response by tablejockey

Hmm...

$375-$4K for a box you plug in, and that's it? Oh and I see there is an IEC outlet so, naturally better to put an aftermarket cord(another expense) than use the stock cord right? 

Maybe  start with their $75 wall thingy, realize you can't hear any difference, so spending on the bigger box wil do whatever it does? 

"harmonize" the sound?...uh sure. I suppose it has its place like every other audio tweak. I heard the Nordost QRT stuff as one of those things I had the squint my eyes and convince myself it was doing its "thing"

Perhaps it's all in ones own power situation?

I do have full Nordost cabling and AC regen. Yes, i'm also a user of audio voodoo.