Vera-Fi Audio LLC

Main Stream - Master Class Dynamic Parallel AC Line Conditioner

$295.00 USD

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Plug Type US 3 Prong Schuko

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Note: Shipping times for Main Stream can take 5 to 7 days.

Master Class Dynamic Parallel AC Line Conditioner

MainStream 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!

Of course, this interference is mostly in the RF range, but things like refrigerators, air conditioners and heaters, washers and dryers; anything with a big motor and put a pulse of energy onty your home AC line and it will be "felt" by other equipment within the home. The energy imposed on the line is absorbed or filtered in different ways, depending on the frequency band involved. Part of Mainstream's effectiveness is due to the multiple frequency bands it effects while utilizing a simple topology comprising a minimum number of parts.

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.

These effects can be experienced individually or in combinations. It is interesting to note that oftentimes the effect (hum, for instance) is apparently reduced, but our bands of interest do not include these very low frequencies. We are reducing energy in a band that infers these types of noise reductions.

MainStream 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 MainStream 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 MainStreams you can use; a large system may best be served by several.

As you probably know, the other type of line conditioning is called "series". There are many (maybe most?) products out there which plug into the wall and then your component(s) plug into it. With these, the current must pass through the various filter parts on their way to your audio component, necessitating the internal parts being of both high enough voltage and current to support the power demands of the attached product(s). This makes these conditioners both larger and more expensive than a parallel type, and they are often designed to serve somewhat different needs, or sometimes one of just distribution and surge protection.

Mainstream uses a combination of reactive elements to create 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 MainStream via Fast Fourier Transform graphs

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Outstanding plug-in AC power conditioner.

My review is with the Master Class in conjunction with the Snubway (which specializes in switching power supply noise elimination). I found that with my system the two Vera-fi units together are a synergistic combination producing a much better sound than either by itself.

AC power noise has long been a major annoyance with my system, and now with two such pairs of Vera-fi plug-ins in my system plugged in near the system's power distribution box, the system has acquired an amazingly improved clarity and transparency and 3-dimensional holograhic imaging/depth of soundfield that seems to be associated with a greatly reduced noise level, a
much "blacker" background.

Overall I am much impressed with the units and wouldn't listen to my system without them.

Top Notch

The Main Stream is the missing piece of the audio puzzle. The Snubway works great on its own, but both of them working in tandem have raised the listening experience to an entirely new level.

In particular, micro-detail now is off-the-charts as I am hearing things on very familiar recordings that apparently had been blocked due to "dirty" electrical lines. We all likely have heard about "blacker backgrounds," but I've experienced that with these products first-hand as I now have a prior point of reference.

I don't think that folks realize the large degree of hash and other noise residing on their electrical lines, particularly where the line isn't a dedicated one. We spend so much time and money on components, but don't give much, if any, attention to power concerns. That may be due to ignorance or the ridiculous cost of many "audiophile" power conditioners, many of which have a deleterious effect on sound quality. These products are the antithesis of that general reality.

You know how you can have a great listening session one day and a not so great one the next? I think that inconsistency is due to what's going on at any particular time with the amount of line noise. Nights are usually better because there's less equipment operating. Well, that's not the case with the Snubway and Main Stream. So far, my listening sessions have been consistently good and satisfying with both of them in the system.

To me, the Snubway and Main Stream, when combined, are the equivalent of a huge component upgrade at a very reasonable price. I really am floored by these little wonders, and am getting so much more from my system than I did before. It's really astounding.

Brilliant

I got the mainstream and snubway together as recommended by Mark. After plugging them both into my power conditioner, music has never been more clear and it made my power conditioners feel like they weren’t doing their job. Clarity, separation, impact, sound stage went up a huge notch, so much so that these products should deserve more attention. They provided benefits even thousands of dollars of cables didn’t do for my system, and they weren’t fully broken in yet. You could also use multiple conditioners and their effects can stack giving an extremely black background for your music. I never realized that there was so much dirty power in my house, so I had to order another because of how good it was. Not to mention, Mark was always there for me when I needed help and answered all my questions making the order process extremely positive compared to other bigger companies. Don’t be afraid to reach out to Mark, this guy is truly amazing and very knowledgeable. Shipping times were longer than expected but well worth the wait, they are working as hard as they can. Definitely a returning customer, thank you for such a joyful experience and cheers to good sound for everyone.

Really Nice

Plugged the unit into the #1 slot of a Belkin surge protecter. Stereo, LCD and Blue Ray all downstream of it. TV picture was notable next day. Waited 4 days for music. Listening to music was like washing your windows, clearly better, hard to define, but bass guitar and drum kick was amazing in that it was more present without becoming overpowering….perfect….

Do the COMBO!

Adding Puron, Snubway AND Main Stream ALL contributed to my VANISHED noise floor!

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Main Stream - Master Class Dynamic Parallel AC Line Conditioner