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The AudioQuest Niagara 5000 and the PS Audio P20 DirectStream Power Plant AC Line Purification Products


Let's face it, AC line power is the bedrock of every audio system. Not only is this singularly common commodity a fundamentally important component, vital for powering all gear in a system, the quality of that AC power line happens to significantly influence the performance capability of every component in each HiFi rig. The bad... Read More »


Keces Audio P8 Linear Power Supply and BP-2400 Balanced Isolation Power Conditioner


Keces Audio (stylized KECES) is a high end audio audio manufacturer based out of Taiwan. They curate several different components, mostly focused around power (both creation and conditioning), so this review will be in two parts. One for the BP-2400 Balanced Isolation Power Conditioner, and the other for the P8 Linear DC Power Supply (Dual... Read More »


Audio Ramblings and the PS Audio P20


So, when it comes down to getting the best, make that the very best, that one's system can produce sound wise in your room, after all is said and done… let's make sure that the AC that is feeding our components is as good as it can get—like with any AC filtration device or a... Read More »


A New Reference in Electrical Power Conditioning: the ADD-Powr Sorcer X2


I've been detailing my experiences with my new home and new listening room over the last couple of years here at PF; a recent article in the last issue (HERE) chronicled my ongoing battles with a seemingly never-ending variety of sources of noise in the listening room. A room that, from the beginning, was designed... Read More »


The Neoteric Listener - The Tweek Geek Dark Matter Stealth AC Power Purifier v.2


If you're all in when playing the game of high stakes audio, the Tweek Geek Dark Matter Stealth AC Power Conditioner is for you. Will you hear a noticeable difference? Yep. Is it worth the cost? That depends on your stash of ready cash and your obsessiveness with elevating your system's impact. Face it, ours... Read More »


Synergistic Research Active Ground Block SE


One of the many reasons why I love the audiophile hobby so much is that it always affords me so many avenues to learn something new and interesting. For example, take the need to "ground" all your audio components. On the surface, grounding may seem like a boring concept. However, if you dig beneath the... Read More »


iFi AC iPurifier - Helping Improve Your Playback Experience by Reducing AC Power Noise


At my old place, I had a plethora of audio-related problems, not the least of which was with AC power. An early 80s house, it was reasonably well built, but almost everything in the home was contractor grade, and not everything employed the best construction practices. I first noticed I had an issue when my... Read More »


Acoustic Revive RTP-4EU Absolute AC Power Strip


A power strip is simply a "splitter" of the power supply—it goes in with a single cable, and it goes out via several outputs/sockets. Acoustic Revive in Europe offers one model, featuring four sockets. We would like to present you the latest version called the Absolute. This is the first part of a two-part test.... Read More »


PS Audio P20 and P15 AC Regenerators - Keeping the System Clean


PS Audio has been steadily developing as a high-end manufacturer since 1974, despite the trading of leadership on various occasions. Paul McGowan, the "P," and Stan Warren, the "S," were the founding partners. Stan left in the early 80s to found Superfon. Paul would leave in the 90s to join Arnie Nudel, having a hand... Read More »


Furutech NanoFlux and LineFlux Cables and Power Products


When I first spoke with Scot Markwell, US Distributor of Furutech products, at Elite Audio Video Distribution in LA, and a longtime colleague of, and setup man for, the late Harry Pearson, about the opportunity to review a full loom of Furutech flagship cables and passive power devices, I admit to being more than a... Read More »


Frank Ultra Bank UB-25000Ws AC Power Conditioner


Abundant availability of AC power is something we take for granted. The distribution of electrical power has been executed with a level of unprecedented success: no matter where we look, there's the good ol' AC power outlet staring at us. Unfortunately, what is delivered by that good ol' AC power outlet usually arrives seriously flawed.... Read More »


AudioQuest Storm Series and Niagara AC Power Products – Draining the Noise


Trigger warning: This article claims that power cables can change the sound of an audio system. To me, a review of AudioQuest power products is necessarily an article about their designer, Garth Powell. I wish everybody who is considering a Niagara power conditioner or Storm Series power cables (and more so people who think it's... Read More »


PowerStar Horizon AC Distributor from HB Cable Design


If you ask five guys what's the best way to configure AC power for an audio system, you're likely to get five—or more—answers. Everything in audio is contentious; AC power delivery is no exception. At one point I was advised, "Every component needs a dedicated line, especially your amps if you're running monoblocks." The reasoning... Read More »


Qualia physic Q1 Mains Filter


I do not know if you remember our interview with Daniel Břeizina, the editor-in-chief of the Czech portal HiFi-Voice.com, published in the previous High Fidelity edition (No. 159, read HERE). Just in case, let me remind you that when he was asked for advice for a beginner music lover and audiophile, he said that it... Read More »


Core Power Technologies EQUI=CORE 300


Image courtesy of Tweek Geek Power conditioners are an essential part of a high fidelity audio system. The reproduction of musical sounds in our homes begins with AC power. Unfortunately, AC power is susceptible to all manner of electrical contamination that impedes audio components from sounding their best. Even dedicated sound rooms with independent wiring... Read More »


From the Kipnis Studios (KSS) - A Cursory History of My Exploration into AC Power Filtration, Regeneration, and the Proximate Effect of Weird Enhancements on Audio Recording & Playback


High end audio is one of those hobbies where there are a seemingly endless number of tweaks and refinements one can add to an existing stereo system, presumably to make it sound better. Who hasn't played around with isolation pucks or cables at some point or another? But often critics of audiophilia start out with... Read More »


Synergistic Research PowerCell 12 UEF SE Power Conditioner


Please be patient as I step you through some backstory. I reviewed the Synergistic Research PowerCell 10 UEF power conditioner back in October 2014. It made a tremendous impact on the overall sound of my system—all for the good! Other than a change in speakers, maybe more of an impact than any other single component at that point... Read More »


The Acoustic Revive Chronicles, Chapter 13: The RPT-6 Absolute NCF Power Distributor, the Power Reference TripleC NCF AC Power Cord, and the RAS-14-TripleC NCF Power Stabilizer


Acoustic Revive was founded in Japan in 1997 by Mr. Ken Ishiguro, who is the design genius behind the innovative and ultra-quality Acoustic Revive products. Like many hi-fi enthusiasts, Ken-san's interest in audio arose through his love for music as a youngster. Ken-san told me, "I was listening to the Beatles when I was fourteen... Read More »


The Acoustic Revive RPC-1 Power Supply Conditioner: Power to the People!


Acoustic Revive RPC-1 Power Supply Conditioner The intrigue usually starts with a message from Yoshi-san or Elia-san from the MuSon Project in Osaka, Japan, who export Japanese audio exotica to The World. Every time I get a message from Messrs. Hontani I get pretty excited, because long experience has taught me that with their extremely... Read More »


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