ADD-Powr

Field Based Power Conditioning

Who Is ADD-Powr?

ADD-Powr found its beginnings in 1999 with 2 products that if you've been an audiophile long enough, you may recognize. They were called the Quantum Symphony and Symphony Pro. They were highly regarded and critically acclaimed products that caught the attention of Stereophile, The Absolute Sound, and other audio magazines. Quantum Resonance Technology was also used in other well known products from Walker Audio (the Velocitor) and Combak corporation.

Nordost purchased QRT technology from the inventor, Bill Stierhout, in 2008 and are to this day still manufacturing products using QRT.

Flash forward to 2019. Bill has advanced his technology greatly, and this time decided to keep the technology to himself. Marketing products under the name ADD-Powr.

What is ADD-Powr Technology?

Add-Powr technology is completely different from other power conditioners. All of their products utilize algorithm generated em fields to transmit energy that re-references or re-biases the AC delivered to your audio components. What that means to the audiophile is you have something that obliterates noise on AC lines and in audio components by using a field, not needing to be physically connected to the components and only connected to ac power in parallel to the components. This feature is o

ne of the greatest benefits of ADD-Powr. It doesn't need to be physically inserted to the local AC grid between wall socket and audio component. ADD-Powr technology leaves impedance and peak current capability of your audio components unaffected. Thus one of the biggest compromises of conventional power conditioning, current limitation, is eliminated.