Vera-Fi Audio

Vera-Fi Audio.offers unique, innovative, and leading edge products for the very best in SOUND QUALITY with great pricing & the value Underwood looks for using state of the art design and manufacturing technologies. 
Their agile and forward-thinking design and management team has over 110 years of combined experience in the audio, electrical, and aerospace engineering fields.
Their products offer superior value products and great , might I say absurd prices. The Caldera 10 subwoofer and Scout monitors are their first 2 products. The Scout monitor, at $299.00 a pair, is a superb value. It is a real rosewood 2 way monitor with 5.25" woofer and soft dome tweeter. Initial press and customer feedback has been exceptional. There is also a new Virtual Black Hole isolation device that is a steal at only $199.00 for a 4 unit set. Great for speakers, amps, preamp or DAC's. A 12" 600 watt Rosewood Caldera sub is due next around the end of May at only $399.00. These will be followed by a 40wpc Pure Class A power amplifier and stereo preamplifier. See the renderings of the amp and preamp below. XSA products come with a 30 day trial with 20% restocking fee.

Vanguard Caldera 10" subwoofer

Intro price $199.00 + $35.00 flat rate freight to the lower 48 states.
New order arriving on Monday, July 1st.
Going to $249.00
Two subs are amazing at only $398.00.


Stereotimes said:

"The Caldera 10 played well with all three speaker models. This sub is quite musical, far from a boom-boom box; it renders with a musical heart. If I have my way, the Vanguard Caldera 10″ Power Active Compact Subwoofer stays put. Please give it a listen!"

Read the entire review here:

The new review said:
I have owned many subwoofers over the years, my first, back in the ‘80s, was a two-foot cube with a 12” driver and a 200W amplifier with a fixed crossover which I sold, well used for $200, and my last commercially made sub was a Genesis that sold for about $3,000, my current subwoofer is a free-air sub similar to the Celestion 6000 of the late ‘80s ($3,300pr) using the LSA Discovery Warp 1 as an amplifier and 50Hz low pass filters (this works well enough for my speakers that I designed it for, but not at all for the Vanguard Loudspeakers or any speaker of significant efficiency). I won’t say that the Caldera 10 is the best subwoofer I have heard, but it is without question the best value in a subwoofer, and it competes favorably with the subwoofers listed here, being both incredibly fast, with exceptional punch, and still has the power to shake a room. To put it in perspective, the equivalent SVS sub is $900.

Ironically, the Caldera 10 actually increased the soundstage, giving the deep resonance that accompanies a massive hall.

I cannot recommend the Veri-Fi Audio LLC Vanguard Caldera 10 Active Subwoofer enough, buy one, for $200 it is a no brainer, in fact, buy two, or if you want to use them for home theatre buy four, no $800 subwoofer will come close.

Here is the first review from Tom Gibbs, Positive Feedback:
"Sequence of events: REL subwoofer dies, resulting in worst day of the week. Vanguard Caldera shows up, and on day one, can things possibly get any worse? Day five following Caldera's arrival: Best day of the year!"
"I never, never dreamed in a million years that the Vanguard Caldera is literally the giant killer that it is;"
"And as great as a single Caldera has been for me, getting two of them makes such perfect sense, both from a financial and audiophile standpoint. Running dual subs will definitely help smooth out any in-room bass anomalies, and would lead to a significant uptick in system performance. At $199 for a single Caldera, your decision is a no-brainer; getting two of them at $199 each makes your decision completely idiot-proof."

"The Good: Seriously? Re-read this review! They say there's no free lunch in high-end audio, but with the Vanguard Caldera, you get an appetizer, lunch, dessert, and a craft beer. All for $199—it doesn't get any better!"

"How is it that Mark Schifter and Vera-Fi are able to manufacture and sell the Vanguard Caldera for $199? I'm beyond baffled, as the sub it's replacing (yes—it's definitely a keeper!) sold new 12 years ago for $1k, and would probably sell for close to twice that today. I'm blown away—yet again—by another of Mark's products: both Mark and his collaborator Viet Nguyen are definitely on their A-game. Well done! The Vanguard Caldera subwoofer comes very highly recommended!"

Read the entire review:

35 pounds
16" H x 13" W x 15" D
Class A/B amp rated to output 200 watts into 4 ohms

-3 dB down point at 30Hz and a -6 dB downpoint at 27Hz;
More Specs coming shortly

Scout speakers

$299.00 a pair + $26.00 flat rate freight in the lower 48 states
Shipping Now

Beautiful rosewood monitor speakers offer superb value. This is the class in the under $500.00 price range.

The Scout uses a 5.25" paper cone woofer with a 1" soft dome tweeter. The crossover is exceptional for a speaker on this price range. It is all housed in a beautiful real Rosewood enclosure.

In the Audio Pursuit review they sum with:

"The result is a wonderful, small speaker gem that is never fatiguing and enjoyable in active listening. The Scouts may have been imagined for the lifestyle casual listening market, but they perform well into budget and journeyman audiophile world. The review pair have found a permanent home. The Vanguard Scouts are a five-star winner!"

Read the entire review here:

See the latest Stereo Times review they say:
"Once on stands and powered by my main rig, Robin and I were stunned at how well the Scouts performed."

They summed with:
"I have much bigger and better speakers and adore them. The Vanguard Scouts play with enough realism and musicality to scratch that same itch. The Scouts give 80% of what the three times their price Vanguards deliver. The Scout is the perfect introduction to great sound at a stunningly affordable price. Add a pair of Vera-Link TWS Bluetooth amps, and you’ve got one heck of an affordable starter setup to use with any Bluetooth-enabled phone, pad, or computer. I listen to each of these speakers in this fashion."

Read the entire review here:

The first review in Tone Audio was a rave. They said:

"Thanks to modern drivers, the Scouts seem very robust, and they possess a lot of the soul that this great American mini speaker (Spica TC-50) produced. A tremendous midrange, smooth highs, and mid bass accuracy instead of muddy mid bass, compromised to goose the low end. It’s hard to believe these are only $299/pair. Back when gasoline was $6/gallon, it cost more than this to fill up a Dodge RAM truck! Going further back, the Spica TC-50s were $450/pair."

"The Vera-Fi Vanguard Scout speakers are a true triumph for music lovers on a tight budget."

Read the entire review here:

Snubway line nose filter


See the new Ton Gibbs Positive Feedback review here:
He summed with:
"at its $295 MSRP, it's probably the lowest-priced product you can buy that will provide the greatest improvement to your listening (or viewing!) pleasure. Thanks again to Viet Nguyen for another brilliant and superbly functional design, and thanks to Mark Shifter for the opportunity, and for bringing it to my attention. SnubWay comes very highly recommended!"

SnubWay TM is an advanced parallel mains noise filter utilizing 4 discrete LRC filters tuned to absorb high frequency noise from switch mode power supplies (SMPS) and other sources in the 10kHz to 2MHz frequency range. Today’s homes have power lines that are constantly polluted with dirty pulse switching noises from SMPS that are so ubiquitous in modern homes. From our cell phone chargers to the power supplies for LED lamps and even our laptop computer supplies. They all utilize high speed switching in the 100kHz to 1 MHz range, and they often leak noise back into the house AC mains.
In Tom Gibbs (from Positive Feedback) Facebook post he says:
Follow-up to yesterday's bit about my findings with Vera-Fi Audio's SnubWay Noise Defender:
"I was really impressed with the difference SnubWay made in my digital system, which has multiple power supplies and computer-oriented devices connected. So I pretty much expected to hear that difference, if perhaps not to the extent that was clearly audible. Color me impressed, to say the least!"
"But in the analog system, after extended additional listening last evening, then leaving the SnubWay connected overnight, I was completely overwhelmed by the transformation of the sound! I just returned from another extended listening session where the improvement in the analog system's transparency and musicality, along with the vanishingly low noise floor provided sound that bettered anything I've previously heard from this system. The Vanguard Scout/Caldera combo yielded impressive realism and dynamics, and with no signal present across the system, I could crank the PrimaLuna EVO 300's volume past the 3 o'clock point on the dial with nothing but the gentle, low-level hissing of the MC cartridge and the tubes. And this is the system where I expected only minimal -- if any -- improvement, and it sounds better than ever! I'd listened to Craft Recordings' new reissue of Art Pepper's classic LP Smack Up last week (I wasn't particularly jazzed by it -- pun intended), but hearing it with the SnubWay in place in the system was like hearing it for the first time -- and it blew me away with you-are-there realism! Color me VERY impressed!!"
"When all is said and done, the SnubWay will definitely be remaining in the analog system! Well done, Mark L. Schifter and Vera-Fi Audio!!"

NEW SnubWay Review from KH from the Decware Forums - with permission

Yup, that’s it.

God, how that title eluded me for the past four days is anyone’s guess (those who know my title fetish, are perhaps chuckling at this point).

Ever since watching the R&D video of the SnubWay noise reduction testing a couple months ago, I was convinced Mark had just scaled another audio peak. I decided to go all in and ordered two units for each of my dedicated Hi-Fi Circuits. The price of entry was compelling and allowed the luxury of going big.

I was pleasantly surprised by the packaging—at first I thought Mark had over secured it but then it dawned on me that he probably didn’t want to chance the sensitive snubbers to any rough handling by the carriers prior to reaching their respective final destinations.

And once I held the Snubway in my hands, I couldn’t help but admire Mark’s Production Values! The Snubway is so exquisitely crafted that I would be equally happy to display it as a decorative item. It’s a damn shame having to plug it in at the back of the rack, hidden from plain sight, for it deserves being center stage—to be seen—in addition to being heard.

Since both of my conditioners (Puritan PSM 156 for source gear and PI Audio’s MajikBuss for Sarah) have independent isolated outlets, I didn’t want to curtail the impact of the Snubways and decided to plug them in the available receptacle in each of my duplex Shunyata outlets so it would feed both conditioners (and the gear plugged in to them) equally.

I plugged in both SnubWays in the afternoon as soon as they were delivered and used up a lot of self-control to not have a go at a listening session until 9 hrs later. Mark suggests waiting at least 10 hrs before critically listening so I lost that fight an hour early as I had to go to bed and knew that I wouldn’t be able to sleep peacefully, without a quick drive-by. I listened for an hour not expecting much but was still able to pick out some positive differences. I went to bed, excited for I was certain that after another 24 hrs, I’d be in business.

Now, after spending 5 excellent sessions, I’m ready to share my thoughts.

There was a mention of a volume boost in the thread, to which I both agreed and disagreed with. I continue to find this subject more complex and fascinating.

Yes, I am detecting more volume at my typical preamp volume dial/setting, so I had to turn it down a little to compensate. But, it’s not because there is any sort of gain provided by the dual Snubways—it’s actually the complete opposite. By strangling the SMPS noise in the line, the Snubways are decreasing the noise-floor to astonishingly inkier blacks. With this reduction in the floor, a couple of interesting things are happening:

While I need less gain to reach my desired 75-85 db level, I was actually taken aback by how satisfying music sounded, 5 to 10 (and in some cases 15) db below my desired level. At the same time, I’m finding the higher frequencies much better controlled even at a higher gain setting on the passive pre. On one track, I was about to turn up the volume because I was conditioned to expect the female vocalist to be a tad shouty, only to realize that the decibel meter was reading at 80 db! In other words, even at a higher gain setting, the Snubways are making the listening experience equally enticing and making sure the higher frequencies are not making out like a bandit.

Speaking of volume—-there is a profound difference in blackness on certain dynamic tracks, when it goes from loud to soft. Not only is it more blacker (which is to be expected given the reduction in noise), but also the speed and control with which its going dark is astonishing. I know this might be hard to comprehend but it’s turning from loud to soft (or vice versa) on a dime. This very noticeable shift in speed is captivating.

The review could just end here folks. I’d be extremely happy with these results, but the positive changes in the noise-floor and how it impacted listening at various volume levels was:

Just the tip of the iceberg…

Soundstage, Space, and Immersion

The stage, nah the canvass, is bigger in all dimensions. There was another mention in this thread about it sounding open and not congested. Similar to the volume boost comment, I agree and disagree at the same time. To my ears and in my rig, the scale of the soundstage has opened up significantly. Think smaller painting vs. a painting 5x its size. That, by definition, will make everything appear less congested. Height, width, and depth are all positively impacted. Notes are noticeably wider, taller (as if I had a large tower speaker), and have decidedly more depth to them (even with the voicing switch on Sarah facing forward).

Closely related to the above is space and or spatial cues. The Phoenix Net (PNET) in my system was already doing a great job of rendering great spatial cues, which transport certain tracks to just another level/dimension. I think the reduction in SMPS noise is allowing the PNET to shine even more. It’s really challenging to describe this phenomenon. You know it when you hear it.

The writing was on the wall during the first listening session. Yello’s track— ‘Rush for Joe’, ends with a jet flying overhead from left to right. I often use this to gauge soundstage and imaging. When dialed-in correctly, you should hear the jet travel right over your head as if you had Dolby Atmos speakers on the ceiling (which I do, but I digress). I was sitting on my couch the first night, not opting to worry about critically listening from the sweet spot, a couple of feet in front. I was expecting to hear the jet fly by in front of me from this particular spot.

Thank God, I wasn’t consuming a beverage at the time since the jet not only flew by right on top of my head (as opposed to a couple of feet in front), but also did with a sense of gusto and realism that left me speechless.

Oh and it didn’t end there. Once it passed on the right, I was expecting the track to stop, but there was an extended decay of ‘let’s just call it a jets after stream’. I had never heard that before.

Jaw dropped, I shut off the system and went to bed determined to explore this new frontier over the next couple of days. The sound just took off from there. Night after night, track after track, I’ve never experienced this level of holography. Here’s what I mentioned to GS:

‘The rig is sounding 2x more holographic than it was ever before—the ease with which the notes are dancing all around me and behind me—-was not expecting that.’

The Snubways appear to have unlocked another level of immersion that I didn’t think possible. I’m still trying to wrap my head around it (no pun intended). It’s akin to being engulfed in a 3D cocoon of sound.

Mark, congrats—you’ve done it again and I have no doubt, that you’ll keep doing it.

End Notes:

Two things I’m not convinced about.

Bass: I am not entirely certain bass has been impacted as much. The Cryotone 300Bs and better isolation feet on my Holo DAC had made a profound impact on the lower octaves. Maybe, the Snubways are just making it a tad more noticeable.

Resolution: I’m also unsure whether resolution has been impacted, though I’ll take Roger’s word for it. He has far more experience and better cabling to discern that particular impact.
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Innuos Pulse Streaming Transport and Phoenix Net Switch-Holo Audio Spring 3 KTE DAC-Ic0n4 Autoformer Passive Pre-Sarah 300B SET Amp-ZBIT-GIK Room Treatment-Caintuck Audio Magnum Baffles—Li Audio Fast 15 Drivers-P.I. Audio MajikBuss & Puritan PSM 156 Conditioners

From Customer T.B. in Las Vegas NV
Sent: Thursday, June 13, 2024 10:04 PM
To: Mark Schifter <>
Subject: Something changed!
Hi Mark,I got the Snubway out of the mailbox and within five minutes plugged it into what is really the only slot available. The first high draw outlet on my Isotek Aquarius. The lower amperage ones are all taken.
Both of my dedicated 20 amp lines have Purons at the wall.
My preamp, a BAT VK-90 has always had a bit of transformer buzz when I put my ear next to it.
The sound is something I’m having a struggle to articulate.
It’s a secret sauce. Almost like finding that magic tube.
Localization. Depth. Palpability. Texture. Tone. It’s freaking me out. Not startled. It just made things more real. And that’s only the digital end.
Where I’m at now is trying to eek out those very last percentages and this did something significant.
Placebo?! I’m convinced not.
Thanks for everything.
A big fan of yours.

BAT-VK-90 preamp
BAT Rex3 amplifier
Wilson Sabrina X
Luxman PD-171a
Koetsu Black and Tsugaru Urushi

     The SnubWay mains noise filter has multiple LRC tuned resonant snubbers to absorb this unwanted noisy energy from SMPS’s over a broad frequency range. The LRC filters utilize nano-graphite pulse absorbers to provide a broader frequency absorption band and high quality polyethylene film capacitors combined with precision wound copper coil inductors. The discrete filters are computer tuned and designed for optimal performance. The filters are arranged in parallel to absorb a broad range of sinusoidal and transient pulse noise sources. The LRC filters are arranged on separate PCB assemblies stacked and connected in parallel using solid 14 gauge copper wire busses. All of this is encased in a state of the art transparent acrylic housing and utilizes custom made premium Viborg plug housing with solid copper prongs and hardware.
     To use SnubWay, simply plug it into a power outlet located as close to your equipment that you want to have filtering achieved. For instance, a power outlet strip. Insert SnubWay into the first outlet position and your audio equipment after SnubWay. As its name implies, SnubWay provides multiple snubbers coming together in one spot - similar to a busy subway train station interchange where multiple train lines connect. The difference here is that the different “noise trains” come to the SnubWay, but they don’t leave! SnubWay is designed to reduce and absorb SMPS noise in the mains by up to 28dB (this can vary and is dependent on customer specific equipment and house wiring arrangement and condition).


Main Stream


Preorder sale at $235.00

Coming Soon! Now Available for preorder.

Master Class Dynamic Parallel AC Line Conditioner

Main Stream is designed to improve the performance of your high-end audio or video system by reducing the amount of AC Mains-based interference travelling on the wires within your home.  This interference is created not only by other components in the system, but also appliances and other electrical equipment elsewhere in the house.  Sometimes even emanating from outside your home!  

Line interference can cause many undesirable effects; hum, hiss, hash, or buzzing sounds from your speakers, a slight vibration that can be felt through the chassis of your components or on the motor of your turntable, and on video displays as random lines, moving bars or fuzzy images.

Main Stream is called a “parallel” line conditioner because you do not plug your component INTO it, but rather plug it into the Mains socket closest to the component. In this way the Main Stream is never restricting the flow of current to your components, simply removing the interference it encounters on the line as the current flows by.  And there is no limit to how many Main Streams you can use; a large system may best be served by several.
Main Stream uses a combination of reactive elements to created tuned filters designed to specifically reduce the levels of noise specifically known to interfere with your audio enjoyment.  Our topology excludes the use of any type of resonant transformer as a wave shaping device, and rather only removes unwanted frequencies. 
•    Capable of reducing system background noise to vanishingly low levels

•    Reasonably priced 

•    Milled extruded aluminum case 

•    Designed for a long life of continuous service

•    A faint blue glow shows it is working 

•    Laboratory tests prove the effectiveness of Main Stream via Fast Fourier Transform graphs

VBH-1 Vibration Black hole
$199.00 for set of 4

See the new youtube review at:

Read the initial Stereotimes review where they sum with:
To quote Mr. Schifter, “Real Deal Science at a humane price,” he’s spot on with that description.
Frankly, I didn’t expect quite this level of vibration reduction and isolation from such a cost-effective product. Vera-Fi Audio LLC’s VBH-1 Vibration Reduction Feet is an “easy lift” for even the most frugal audiophile to use under single or multiple components. Color me impressed!

Read the entire review here:

Positive Feedback said:

"Most isolation devices are designed to reduce vibrations to the affected equipment; reducing those vibrations improves your music playback by increasing microdynamics and reducing temporal smear. Prior to about five years ago, I'd never given much thought to vibration effects on audio equipment that simply sits on a rack. With the exception of turntables, which can obviously benefit from some type of vibrational damping. However, I've long since seen the light, and have reached the realization that all equipment can benefit from vibration control, regardless of how insignificant that piece of equipment might outwardly seem."

"The Vibration Black Hole isolators, plainly and simply, accomplish what they're designed to do, period. The careful lengths I'd previously gone to by reducing vibrations to my turntables seems to have vanquished those effects from my LP playback—which even without any vibration protection underneath the Stellar phono preamp was probably "good enough" in my opinion. The arrival of the VBH-1 devices proved to me how very wrong I was—good enough often isn't very good, after all! I've already scoped out the next area for improvement in the analog room: my PrimaLuna tube amplifier simply sits on its Target amp stand. Yeah, it weighs 80 lbs, but those delicate bottles would very likely benefit from some VBH-1-type vibration control!"

Vera-Fi's VBH-1 devices are elegantly stylish in appearance, will complement any high-end audio system with their excellent performance, and get you even closer to the music. All of Mark Schifter and Vera-Fi's products are based on an exceptional level of science; they're designed to cut through all the crap between you and your music, and isn't that what it's really all about? The VBH-1 isolators work as well—or better—than the more utilitarian-looking, viscous layered damped isolation devices from other manufacturers. And I can't emphasize how much of a bargain the VBH-1 isolators are—they retail for less than half the current price of similar designs. Once again, well done Mark! The VBH-1 Vibration Black Hole Isolation Feet come very highly recommended!

Read the entire review here:
The Vibration Black Hole (VBH) isolation feet provides mechanical vibration attenuation and isolation using a novel two-stage constrained viscous layer damping (CVLD) technique whereby a compliant and viscous polymeric medium is placed in between two hard surfaces, thereby providing a mechanical impedance mismatch that dissipates the energy from mechanical motions/vibrations through the mechanical shear and compression of the viscous layer. By use of dissimilar materials (nylon/stainless steel/viscous polymer/silicone rubber) in multiple stages, the VBH provides an exceptional level of extra mechanical dampening between two components needing mechanical isolation.  The VBH is ideal for mechanically isolating sensitive audio gear such as turntables, tube amplifiers, preamplifiers, and buzzing power supplies in large linear amplifiers. They are also very useful for isolating speakers from hard floors or tables to provide an improved soundstage and bass clarity. Each VBH consists of a precision machined stainless steel body and stainless steel inner core and a machined nylon piston-like conical contact pad. In between each of these components is the unique CVLD dampening compound. The device being isolated mounts on the included machined aluminum spike feet which mate to the nylon conical contact pads to provide the first stage of isolation. This stage is then in contact with the main external base through a second CVLD pad. The second stage of CVLD has an external backup silicone o-ring bumper to prevent bottoming out under heavy load and itself also acts as a CVLD under heavy loads. 

Audio Pursuit said:

"At just $199 for a set of four, the VBH-1's provide a tremendous value per dollar compared to other aftermarket solutions. The VBH-1's are a valued and permanent addition to my audio system!"

Read the entire mini review here:

Each VBH can support up to 30 lbs so a speaker with four VBH can weigh as much as 120 lbs. The VBH has been tested with an instrumented turntable plinth and special instrumented and calibrated test hammer and has shown a significant reduction in the transmitted mechanical shock and reduction in transmitted mechanical energy.