Vera-Fi Audio LLC
SnubWay - Noise Defender
SnubWay - Noise Defender
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What SnubWay does
What SnubWay does
You know how most modern gear—TVs, chargers, fridges, even that smart light bulb—runs on switched-mode power supplies? They’re efficient, but they dump a ton of high-frequency noise back into your mains.
That noise leaks into your audio chain—even if your setup’s ‘separate’—and messes with dynamics, clarity, texture. SnubWay acts like a noise vacuum for that mess. You plug it in near your system, and it passively clears out the crud those appliances feed into your wall.
It’s not voodoo. It’s science. And once you hear what your music sounds like without that everyday noise riding the line… you don’t go back.
Avoid getting down the rabbit hole —$2,000 power conditioners, regens, audiophile cables with ‘tuned’ dielectric geometry. Some were fine. Most just looked impressive.
What makes SnubWay different? It does not re-invent your power. It just targets the *actual* problem—noisy signal from SMPS and household junk. And it does it without drama. No switches, no LCDs, no ‘smart’ circuits trying to justify the price tag.
SnubWay’s like a silent worker. Not glamorous. Just clean, effective, and reliable. And for once, you won’t feel like you are paying extra for marketing fluff.
Product Description
Product Description
How It Works
Watch this SnubWay prototype (ParaSnub) demo by Dr. Viet Nguyen and discover how it can transform your setup!







Placing the SnubWay into my high end system reduce the background noise .It has made things a lot darker ,everything is quite and it make the music much more enjoyable. I have had a few of my audiophile friends over and we listen to my system with it in and out. Everyone of them left my house in disbelief that it made that much of a difference in. Now they are all thanking me and purchase the SnubWay for there own systems. I highly recommend trying the SnubWay. Happy listening 🎶.
I took a flyer on this during one of the occasional price reductions by Mark. Given the glowing reviews, Vera-Fi's generous return policy, and the reasonable cost, I decided, "why not, can't lose?"
So, I received the SnubWay, popped it in the the second outlet of the duplex that feeds my power conditioner / transformer and promptly and completely forgot about it. I didn't listen closely much that week, my system was mostly providing background music during several jam-packed days.
7-8 days in, I sat down and played some Pat Metheny, Beach Boys, Coltrane, and a bit of Yes. Sitting in the sweet spot, but working on the computer while doing so, I suddenly looked up and declared, "Wow - great clarity!" I don't think I've heard my system sound quite like that before.
Delighted, I started working less and listening more. A few records later, all sounding fresh and unveiled, I remembered the SnubWay. Coincidence? Who's to say? My system sounds so great these days, I haven't yet chanced removing the SW to test my impressions. I'm afraid of breaking the magic :).
When I finally do, I'll report back. But for now, this silly thing seems to be providing some serious good sorcery on my electrons...
Snubway improves sound stage and details and placement of the instruments on the sound stage. Using the combination of the Snubway and the Mainstream even further expanded the width and depth of the sound stage. Micro details become more evident.
Using both of these in the home theater provided better color saturation along with better overall sound!
In my 2 channel system the sound the sound became more holographic. A definite win-win for me. The more of these you add the more you'll gain.
Clearer sound and better separation of the music, heard more of the music.
This is my first Vera-Fi product. My system, except amp, runs through a 25# noise reduction Topaz transformer. The SnubWay still made a sonic improvement. There is a band of hash and grit in the lower highs that is greatly reduced. The system sounds so much more pleasant and relaxing.
This works so well, I purchased a 2nd SnubWay for the amp and a Main Stream for the complete system. Amazing improvement. The system now sounds the same day or night. I can listen for hours without fatigue. Highly recommended.
My Main Stream and SnubWay filters arrived a week ago today. I plugged both into the back of my power conditioner replacing one of your older Puron filters. (I was so impressed with the performance of your older filter that I decided to gamble on upgrading to this pair of filters.) They have been in my system now for about 140 hours. Listening at my normal level to my favorite tracks, the music was noticeable louder. As I listened, I realized that the overall volume had not increased but the dynamic contrasts within the music were greatly improved. I assume this was due to a further reduction of the noise floor. The other thing I noticed was that very subtle details in the background, bells, brushes on cymbals, wood blocks, while clearly resolved in the past, were part of a “sonic fabric.” That fabric was now gone and each of these delicate sounds now existed in three-dimensional space with a sense of air around them and their own dynamic range. For a guy like me, who loves hearing these inner details, my listening engagement went off the charts. Long story short, this pair of filters made my system more transparent, more engaging and brought me closer to the experience of listening to live music. If anyone out there is fence-sitting, debating on getting these, ORDER THEM! I have spent thousands on cable upgrades and not heard as big an improvement as these filters provide.
MIT Z-1 and Blue Circle BC86. Highly recommended!
WOW! 💥 I added the Main Stream unit first. After a good amount of break-in time, I started hearing the backgrounds in the music sound quieter. Instruments are a bit more focused in their own space. A subtle but noticeable improvement overall. Now I decided to try out the SnubWay. 48 hours in, no real change in things. Fast forward to about 500 hours of being in my stereo system (with the MainStream still in place) and I cannot believe what I am hearing! I have a much bigger soundstage right-to-left and the same for depth front-to-back. There's a greater separation of instruments & voices and yet there's more layering and detail in between. Anyone who cares about their music and optimizing the way your stereo sounds needs to contact Mark L. Schifter at Vera-Fi Audio. Of course, YMMV in your system. Tell Mark that I sent you!
This is my second Snubwayand I have had one for my audio system and it made an audible improvement. This second one is for my new tv and soundbar. Again a visual and audible improvement. Smoother clearer sound and sharper and clearer picture. Well worth the modest cost. Highly recommended!
With so many portable plug-in noise filters on the market, some of which I have tried and implemented in my system(s), I was leery of the SnubWay but decided to give it a try. I was not too impressed at first when implemented in my 2nd system as it caused an upper frequency glare when placed in the outlets in the listening room. With some experimentation, it became clear that placement was the key to extracting its full potential with one place being most effective and that was in the dining area where we have our laptops. Placing a SnubWay on that circuit had a substantial improvement on the systems resolution and noise floor. Unplugging the laptops was also shown to reveal additional reduction in noise. Highly recommended but experimenting with placement in one's home is key to extracting its full potential.
SnubWay Reviews on YouTube

Audio Pursuit
Audio Pursuit gives SnubWay the Tesla award alongside Main Stream

Audio Pursuit
Budget-Friendly Power Conditioners: Snubway & Main Stream
Articles about SnubWay - Noise Defender

Positive Feedback
Tom Gibbs awards Main Stream and SnubWay for 2024 Writers' Choice Award

Part Time Audiophile
It was almost mind-blowing to hear such a transparent system become even more transparent with SnubWay.

Positive Feedback
Vera-Fi Audio's SnubWay Noise Defender: Taking Your Audio and Video to the Next Level

Tone Publications
The SnubWay makes a massive difference in reducing the overall graininess of your system’s sound.
diyAudio
SnubWay Development and Updates on diyAudio Threads by Viet Nguyen
Frequently Asked Questions (FAQs)
What is the SnubWay - Noise Defender?
The SnubWay is a device designed to reduce AC noise in your audio system, enhancing sound clarity and overall performance. SnubWay works on eliminating Switch Mode Power Supply Noise which poisons your AC Mains.
How do I install the SnubWay in my audio setup?
Simply plug the SnubWay into an available outlet on the same circuit as your audio equipment. No additional setup is required. We prefer any open Duplex on the Wall, but can be used with Power Conditioners if no open Duplex exists.
Will the SnubWay work with any audio system?
Yes, the SnubWay is compatible with a wide range of audio systems and components. If you have a Flat Panel TV in your home or use Wall Chargers for Mobile Phones, you will benefit from having a SnubWay.
Can I use multiple SnubWay devices in my setup?
Yes, using multiple SnubWay devices can further reduce noise across different circuits in your audio setup.
Why doesn't the SnubWay have an indicator light to show it's working?
The SnubWay operates passively to filter out high-frequency noise from your power supply. It lacks LED indicator lights by design, as its effectiveness is instantly reflected through improved clarity in TV screens and improved audio performance of the system rather than through visual indicators on the product.
Can I plug in the SnubWay while my audio equipment is turned on?
Yes, the SnubWay is designed to be safely plugged into a power outlet near your audio equipment, even while your system is operational or turned on. We have tested it ourselves and our users testify to that.
What are the specifications of SnubWay?
Snubway is available in both model and type:
- 110v and 220/240v
- 50Hz and 60Hz
Featuring:
- 5 parallel RLC filter designed for reducing noise from 30kHz to > 1MHz
- Premium Viborg plug base and pure copper wall socket blades
- Custom-made CNC solid aluminum case
To ensure you receive the appropriate version for your region, please contact us directly with your specific voltage requirements. We are committed to accommodating your needs and will provide the suitable SnubWay model to match your local power specifications.
Is there a trial period or return policy for the SnubWay?
Yes, we offer a 30-day return policy for you to experience the benefits in your system.
Where can I find Vera-Fi Audio warranty information?
You may find information about warranty here.
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When I added the LNBH and SSZ to my system, I installed them together, so it’s impossible for me to separate their individual contributions. After a long run-in period, the changes became so compelling that I found myself staying up late, revisiting every song I’ve ever loved.
One of the most striking improvements was the disappearance of noise-related limitations. With these two in place, details that were previously buried in the mix became clearly audible. I could hear the subtle sounds of a vocalist taking a breath or even swallowing, which added an incredible sense of realism to the performance.
The overall imaging feels more precise, with every element in the soundstage locked in place. Music flows effortlessly, and the presentation is so engaging that it’s hard to step away from the listening chair. This pairing improved the technical side of my system while also bringing a level of musical connection that keeps me listening for hours.

I recently replaced the stock fuses in both my SSZ and Tempus PSU with the Graphene Sluggo.
Even at the start there was a sense that something had shifted, but this is not the kind of upgrade that shows everything in the first hour. In my case it really came into its own after about 300 hours. The first 50 hours the treble had a slightly tighter character and the mid-bass felt restrained. Around 150 hours the presentation started to relax, with better flow and more natural layering. By 300 hours dynamics felt settled, micro-details became more apparent, and the whole system sounded more connected.
What stood out most to me was the neutrality and transparency. It does not push the tonal balance in any direction, it simply lets the system speak for itself. Highs extend cleanly without harshness, keeping fine texture and air. The midrange has a natural presence with good retrieval of subtle detail. Bass is well controlled, evenly weighted, and separated with clarity.
On the SSZ, highs became smoother while keeping resolution, and the soundstage felt more open in both width and depth. Vocals gained more dimensionality compared to the stock fuse. On the Tempus PSU, tonal balance stayed consistent, but resolution improved across the range, making instrument separation easier to follow.
Mark at Vera-Fi has been great to talk to. Every question I asked was answered with detail and warmth, which made the whole experience more positive.
After this I plan to gradually replace all the fuses in my system with the Graphene Sluggo. For anyone using SSZ or Tempus PSU who wants more resolution and detail without altering the system character, this could be worth considering.

Purchased a pair of Vera-Fi Audio Vanguard Scout bookshelf speakers to replace my Fluance XL8S bookshelf speakers in the living room 2.1 system and am glad I did. In Stick Season by Noah Kahan Noah's voice has a low-level echo seemingly caused by the recording space, and it was hard to resolve in my Fluance XL8S based 2.1 system. Now, with the Vanguard Scout based 2.1 system, that low-level echo is better resolved at the same, low volume level (67dB or so on average at the listening position, C-weighted). There is that and there's the fact they're gorgeous looking speakers in the room. Very happy with this purchase.

This sub is a great value. I can’t think of any other sub in its price range that can compare.

I've had experiences with three different sluggo options, the high purity copper version, high purity copper with a gold immersion, and the graphene sluggo. The graphene sluggo was far and away my no. 1 choice; graphene is the best conductor of electricity that exists, and the graphene sluggo has been vapor-deposited with a microscopic layer of the compound. Graphene is actually just a single molecule of carbon, and though the microscopic layer deposited on the sluggo is infinitely thin, it still transmits current at a 70% higher rate than either of the two other options. The sluggo uses the proven concept of "skin effect," where the lion's share of the current travels across the surface of the sluggo. The graphene sluggo was absolutely superior to anything else I had access to, you can read my original review here:
https://positive-feedback.com/reviews/hardware-reviews/vera-fi-audio-swiss-digital-fuse-box/?highlight=graphene

The Naiu Ella Stereo Amplifier is the only amp in my collection of gear that has an amperage rating higher than 10 amps -- that wouldn't allow me use the more flexible Infinity Fuse unit that's user-programmable. The Swiss Digital Fuse Box arrived in a black case as opposed to the usual silver case, which was a really good look! Hookup was easy, and I robbed the Core Power Piggy Tail from my analog system to hook the Naiu Ella to the SDFB. After it burned in for 24-or-so hours, I took an extended listen, and the SDFB in the system with the Ella amp now showed the same level of effortlessness and clarity I noted in my original experiences with it in my all-analog system. And my principal assessment of the SDFB remains consistent -- the Naiu Ella in the digital source system now plays with more control and limitless dynamics -- it's almost like a completely different, more powerful amplifier. Very highly recommended -- once you hear your system with the SDFB, there's no going back!

A more cost-effective, user-programmable alternative to the Swiss Digital Fuse Box! And the dip switches allow the user to customize it for amperage and fuse type (slo-blow or fast acting) for compatibility with a variety of devices. You're not limited to a single device (as with the SDFB, which arrives pre-programmed for a specific fuse type and amperage rating), and that frees you to experiment with other equipment, easily helping you decide if you need additional Infinity Fuse units. The only thing necessary for you to do prior to placing your order is to confirm the fuse dimensions and choose the Sluggo (that replaces the fuse) or an upgraded version. And the Infinity Fuse will work with any device with a fuse rating up to 10 amps. Highly recommended -- I've tried it with tube amplifers, DACs, and preamplifiers, and the IF really gets you closer to the music!

There are a couple of qualities of these subwoofers that I would like to comment on favorably. First, the coverage of the midbass frequencies, and in fact the musicality of the subwoofers, is remarkable for the price. In my room, the frequencies between 65 and 125 are suppressed by the room. The Caldara subwoofers compensate for this very nicely. Second, the visual appearance of the units is very nice.
Wow, I miss the ultra low frequencies that my old but no longer functional REL subwoofers provided, my music room does not really allow for reproduction of the frequencies between 20 and 40 Hz. The trade-off of musicality is therefore significant compensation.
I appreciated Mark’s generous offer to substitute the Caldera for the smaller model which was out of stock. If I can make one suggestion for future Caldera models, it would be to have speaker level inputs in addition to the RCA inputs.

Wow - I honestly wasn't sure if I was even a "bass guy" before purchasing 2x Caldera 12"s, and my Wharfedale Linton's even had already solid bass response, but in the endless quest for the "wow" factor, I was pointed towards Vera-Fi's subwoofer offerings.
Let me just say, I am absolutely blown away. I can't stop listening to my system -- it just sounds too good. I also have not experienced such remarkably good customer service from a company in quite some time. Thank you to Mark and the team for making such a reasonably priced product that punches far into much higher price points.

The Line Noise BlackHole (LNBH) sets the new industry standard for AC line noise elimination. In both my systems, the LNBH in combination with the Snub Station Zero easily bested the AudioQuest Niagara equipment that occupied both systems. If you can manage with a combined amperage total of less than 10 amps (that's much easier than most might imagine), these devices will shock you with the goodness they bring to your listening sessions. Yes, they eliminate AC-borne line noise, but the opens an entirely new listening experience, with incredible transparency and clarity, whether you listen to analog or digital sources. Very highly recommended, and maybe the most important product launch from Vera-Fi Audio yet!