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Vera-Fi Audio LLC

Main Stream - Master Class Dynamic Parallel AC Line Conditioner

Main Stream - Master Class Dynamic Parallel AC Line Conditioner

Regular price $295.00 USD
Regular price Sale price $295.00 USD
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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!

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.

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 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

View full details

Main Stream Reviews on YouTube

Audio Pursuit gives Main Stream the Tesla award alongside SnubWay

Vera-Fi Main Stream Quick Overview

Budget-Friendly Power Conditioners: Snubway & Main Stream

Articles about Main Stream

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

Main Stream wins 2024 Accessory of the Year awarded by Headphone Guru

Main Stream provide the kind of overall improvements you'd expect to pay through the nose for.

The Main Stream will make a similar contribution to your system just like fine-tuning your speakers for optimum placement and turntable setup.

The Main Stream brought me ever closer to the music while providing a more nuanced performance.

The Main Stream is an incredible value and an extremely simple way to improve your audio system without introducing any negative effects.

I can’t think of any other product that improves recorded music as dramatically as Main Stream.

Main Stream has worked wonders in my all-analog system.

Customer Reviews

Based on 33 reviews
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J
J.R. (Eagan, US)
Greatly improved clarity from a reduction in noise.

I have had the Snubway and Main Stream plugged in my system for about 2 weeks days now. On the first day I was not blown away by what I was hearing. I did notice some improvement in clarity and reduction in noise floor, but it kind of left me feeling underwhelmed.

Fast forward to three days later and when I sat down to listen I was like "Wow". Something had changed for the better - by a lot. I was now hearing much more clarity and the reduced noise floor allowed me to hear more low level detail in recordings. I noticed for the first time room ambience in some jazz recordings that I had not picked up on before and the music overall seemed to reach out and pull me in more than it had previously.

I tried various positions for the devices and for now have settled on the Snubway being in the duplex outlet that my power conditioner is plugged into and having the Main Stream plugged into the first outlet on my power conditioner. This configuration was recommended by Vera-fi and seemed to work best for me. When I removed either one of the devices the result was less than when using both.

Mark from Vera-Fi was very helpful with any questions I had. Highly recommended to try.

P
Prasad
These devices are impressive and very immediate to notice after their 100+hrs of run

In a nut shell: Snubway and Mainstream combination has cleaned my audio as much the best painting with excellent details and texture covered with dust for years comes to life when the dust is cleaned. Picture hasn't changed, its the appearance that is now more appealing. Just this way these devices makes music pop up.

I wouldn't give what has improved on which of the track, because every track sounded awesome, very detailed to me. I don't want to leave it to your imagination rather wanted you to experience it.

While some may consider the effect to being bright due to increased resolution, but truly that is how probably your system with good power supposed to sound.

There may be several other products with similar offerings and if you have time to experiment, fine try your best fit, otherwise these are real stuff at a very affordable price. And if you are a person like me, would spend time enjoying the music then think no further, just add Snubway and Mainstream. Mostly you will not regret with your decision.

I would say buy it, plug it, sit back and relax for a week and then thank yourself for the decision to buy it otherwise avail the 30 day money back guarantee. Whatever don't decide to unplug it without running atleast for 100+ hours, 10 days to the best.

Detailed review:
Friends if you have time read thru the entire review to get a feel of my experience.

I am a real person, an audiophile, paid purchaser of the products, not a reviewer paid or affiliated to any publication nor have any affiliation with the product(s) or the company nor here to influence your decision.

My setup has power conditioner (Synergistic Research Powercell SX) and multiple power enhancers (from High Fidelity cables, Add-Powr Sorcer 4 and Synergistic Research various products) including the well acclaimed power cords (Synergistic Research SRX and Galileo) that are supposed to eliminate noise. Absolutely no product using SMPS, only LPS from Sean Jacob and Farad even on network devices including modem, router and all network switches in the chain. All external PSUs use Core power technologies Diamond xtreme power cords. And most importantly the entire audio network is on a seperate circuit with 30A breaker on its own. I was very happy with my setup.

In my interactions Mark recommended to try Snubway. I mentioned to him I already have several power enhancers in my setup and will these really add or do anything different. Mark very confidently responded, based on what his customers experiences was it will, give it a try. I very reluctantly ordered to give it a try, not because they are expensive but because of the efforts and time involved to spend on it.

Here's the summary of my experience:
Upon plugging Snubway and Mainstream to the main power receptacle that feeds the entire system, I heard something different happening.

At first the change I heard was in the lower frequencies, which was also my observation with most other products that are made of pure copper. The experience was OK as it isn't the final state, results can go either side after few hours of listening. The best part even at this stage is nothing is added or removed, I could enjoy music as before.

Day 2 (after 30hrs+), I haven't heard what my experience has been the first few hours of plugging in. Music seems to be sounding more closer to how it was before adding these devices, but a little more details poping out from a very far off distance. Day 3 thru 5 (36hrs to 100hrs), gradual improvement especially tigher bass compared to the previous days as well as details popping out closer as it aged connected and powered. I don't shut my audio equipment, leave them on always except when away for more than a day or bad weather conditions.

I usually play audio at moderately higher volumes especially when recordings are too good and wanted to enjoy every detail. At about 100hrs+ of use, due to an unavoidable situation I had to play music at considerably lower volume, almost 2-3db down from my normal listening volumes all that day. Interestingly, in my listenings that day I never felt a need to raise volume even for those existing moments. Every detail popped up crystal clear, just like how a painting would show cleaning dust from it. Imagining and soundstage from my original audio equipment is unaltered, just the stress is relieved.

As days passed it just added more excitement forcing me to listen again every track I previously enjoyed. At this stage I decide to go back to earlier setup, so, unplugged both Snubway and Mainstream from the chain. I could hear the difference immediately, but this time felt it a bit dull.

Not being sure, to double verify whether it is a placebo effect or real, plugged Snubway and Mainstream into my multi-channel HT. My HT setup too is equally powered with power conditioner, enhancers and power cords similar to audio setup. Surprisingly, same impact on audio there too and interestingly video improved to a gr...

j
jiahao
耳机放大线路更合适MainStrem设备

今天对 MainStream的位置进行了AB交换比较:
从数字播放线路(数播、解码、usb重组)的总墙插 挪到 耳放线路总墙插后,与SnubWay#2 搭档(同样数字播放线路也有 SnubWay#1设备),效果还真有点让人惊喜。
低频明显沉得更深了,不是那种轰头的胀感,而是扎实又有层次的下潜,听着挺舒服。动态也更有活力,声音的力度和起伏都更清晰,尤其是听大编制或者鼓点强的曲子,能感觉到那种冲劲。
空间感也开了不少,声音不再闷在一起,定位清楚了点,空气感也好了一些。
刚换上去一耳朵就能听出差别,虽然不是翻天覆地的变化,但这种细腻的提升真挺抓耳的。降噪做得也稳,背景干净了,低频和氛围感都有加分。

对喜欢低频质感和宽松听感的玩家来说,这俩组合还挺值得一试,性价比挺有吸引力。MainSream在我的系统中更适合耳机放大线路。

V
Vic Di Iorio (Montreal, CA)
Mainstream AC line conditioner and Snabway

I have bought the Mainstream AC conditioner and the Snubway as well a few weeks ago. I can say that I was a little sceptical because I have a very high revealing system ,so how much better can it get? Well the first 150 hours were very subtle in audible differences but something was going on as I was starting to feel the music differently.The week after, I started to play some vinyls and WOW! I was so excited that I had to write to Mark to tell him he’s got 2 great products.The music sounded more live and detailed with a great soundstage pinpointing the instruments a notch above before. I need to mention a thank you to Mark, a real gentleman. He will answer any questions you may have regarding any issues you may have.I recommend both products as they complement each other.Thanks again to Mark and can’t wait for his next winner.

R
Reynold Elliott (Harrisburg, US)
Master Class Dynamic Parallel AC Line Conditioner

Excellent product yielding much better results than expected. Especially when paired with a Snubway noise defender. I am definitely considering another pair in the near future.

M
Mike Watts (Hayward, US)
The Main Stream is Amazing!!

I addded this to my system that already had the Swiss Digital FuseBox with an and a SnubWay, and I was already super happy with, then I saw Mark had said the Main Stream and SnubWay work great together and as usual he was right!

The MainStream added another level to the complete absence of interference with my digital gear and creates absolute inky blackness with added clarity.

Thanks for another great product Mark!

b
brendan o.s. (Cork, IE)
Uplift in SQ

I have a Snubway Noise Defender and a Main Stream conditioner in my system for a while now and they definitely improved the sound quality. However I recently added another Mainstream and placed it in the electrical outlet near my broadband router. I noticed another improvement in SQ almost immediately and it seemed to gradually get better and now about 150hrs in it is truly amazing. The sound from my system is gone to a whole new level, especially the bass which seems to be much tighter and is a joy to hear. Overall a major improvement. It is astonishing how these little units are capable of giving a lift you would expect from a component or cable upgrade

L
Luigi Nappi (Prague, CZ)
Thanks Vera-Fi Audio for these magic plugs!

I have 2x Snubway + 2x Mainstream plugs connected to my Ansuz power distributor. My system never sounded better!

I was initially skeptical, but there are really safely amazing to use...even in very high-end systems.

T
Tim Evers (Delft, NL)

It is a incredible improvement in quietness

R
RICHARD Weed (Bothell, US)
Mainstream

Mainstream replaced a Puron used with Snubway. Did not notice a huge improvement over the Puron. Will keep the Mainstream and use the Puron on a different system.

Frequently Asked Questions (FAQs)

What does the Main Stream Master Class Dynamic Parallel AC Line Conditioner do?

The Main Stream reduces a broad spectrum of AC noise, allowing your system to achieve ultimate performance.

How is the Main Stream different from other power conditioners?

The Main Stream is a plug-in filter that increases the blackness of one's audio system, enhancing sound quality without introducing any negative effects. It concentrates its effects mostly between 10kHz and 20kHz where problems with AC Mains tend to show themselves.

Is the Main Stream easy to install?

Yes, simply plug the Main Stream into an outlet on the same circuit as your audio equipment. Main Stream is fine in Power Conditioners as well. Main Stream is also a parallel type filter so can be plugged into any available free power socket in your system.

Can I use the Main Stream with other power conditioning devices?

Yes, it can be used alongside other power conditioning devices like SnubWay or other products like Puron etc.

What kind of improvements can I expect in my audio system?

Experts and users have reported a darker background, revealing more detail and ambient cues, expanded soundstage, and tighter, deeper bass.