Hi Lon, I picked up a pair when they had the additional 25% off their current ongoing sale prices.  Below is a previous thread post of mine

“I picked up a Line Noise Blackhole paired with a Snub Station Zero. I was skeptical I would hear much, if any, improvement with all the power conditioning I am using (2-Purons, Snubway, Mainstream, High Fidelity Cables MC-1Pro, Furman/Panamax conditioner). After just 2 days I have to say adding this component pair provides a very nice improvement.  Tad more gain, better clarity, larger 3D soundstage, cleaner instrument separation and detail.  Very surprising result to say again.  

The set up = Line Noise Blackhole plugged in to its own duplex socket- Snub station zero plugged into Blackhole-power amp (into snub station soft start socket), preamp and DAC into Snub Station.  All other components plugged into power conditioner using a separate duplex socket.  All other conditioner device plugs on tri-outlet splitters on same duplex or electrical line.  Best my system has sounded and maybe better with some break in hours.”

With this line conditioning pair added into my main system I no longer needed my Stack SmoothLan, my EtherRegan, and Clock.  They no longer added any improvement.  I still use optical isolation.  It was nice to simplify, clean things up a bit and sell them for $.
Vera-fi recommends duplex/LNBH /SSZ/Amp(soft start outlet), Pre and Dac.  No Power strips, splitters or power conditioners into either of these.  Just one device in each socket only. Hope tis is of some help.  Enjoy them!

Talk to Mark about plugging the ZLC into the LNBH?  10 amp peak max on them.  He told me not to plug my conditioners or splitters into either of these components.  Best to be sure it’s ok…Regards!

Well I did commune with Mark about my planned usage and he said there would be no issues! Looks as if I'll have my first two on Tuesday and then my third on Wednesday. Looking forward to the experiment!

I have six components (no streamer, don't like streaming). I'll have three in the ZLC  with the LNBH before it and three into the Zero with a LNBH before it plugged into the Zero. I'll also try it with the Zero and LNBH also plugged into the wall. If this works out really well. . . I may get another Zero and sell the ZLC. We'll see. I think it may make sense to have the ZLC in place . . . for possible expansion and it may possibly be better sounding this way.

HK. . . you did without your SDFB?

Hey, I understand the allure of streaming. I just never found streaming to sound as good or better than cds and LPs, and I like to own music not rent it. I have no trouble finding new artists as is evidenced by the fact that I have about 35,000 discs or more between our house and my storage unit! My listening room and main system has been exiled to the upstairs, darn it, I'm used to it now after about five years or more.

My TV and video is in a living room system that is pretty darned good, though not as wonderful as the main system. And I have a third bedroom system, which is headphone only. An embarrassment of riches.

Looks like the sale has worked, the Snub Stations are all sold out. I picked up a LNBH and I'm hoping it knocks the last bit of hum out of my system. Will be going before a Tripp Lite Isolation Transformer.

I was a able to add my streamer, which only pulls 5W, to my Snubstation Zero.  I now have my power amp, preamp, DAC and streamer connected to SSZ. I used this simple adapter I had on hand.  https://www.amazon.com/dp/B01JRLSPRW?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
I was worried it might degrade the sound but moving the streamer to the SSZ and sharing an outlet with my DAC had a positive effect.  Not major but noticeable.👍

Just spun Side 1 of this LP, sounded great!

Now let's see what a few days does for all the components.

It's been 20 years but what I remember is hum and a treble edginess. I was even began using two thinking that might help, one for digital one for analog, still have them in storage somewhere. I moved from there to my first power regenerator which was an immediate "ah" relief.

Hi Tony, My adapter does allow for 2 cables to plug into one SSZ outlet.  Just have to keep the draw under 10 Amps.  You have to look at some of the other pics on Amazon.  Here’s a better picture.  You should be very happy with these two components they work really well for my system.

Got it, now I see how that works. Thanks.

Here is a report that I sent to Mark at Verafi Audio as I had promised him I would do, summing up my experience so far with these products:

Mark, it's been nearly a week since all three of the components I purchased (2 Line Noise Black Holes and 1 Snub Station Zero) have been in the system and I was going to hold off longer to give you a report. . . but. . . I feel they have settled in and are "being all they can be" and. . . WOW.

First off let me explain how I am using them. Previous to their arrival I had moved from using a PS Audio P15 (with a Swiss Digital Fuse Box) to a Decware Zen Line Conditioner (with no Swiss Digital Fuse Box) as the P15 failed and will soon be on the way to PS Audio for a repair. This was not as big a "step down" as I had feared and I liked the sound. I had some hum (and I attributed it to my Decware ZROCK3 and SEWE300B, both of which seemed to have an inherent hum). Great sound. . . and then the three new components came in.

I put one of the Line Noise Black Holes in between the wall and the Zen Line Conditioner. Another I put coming out of the Zen Line Conditioner and out of that my Decware ZROCK3 (there is a Swiss Digital Fuse Box between the Line Noise Black Hole and the ZROCK3). A power cable from the Zen Line Conditioner went into the Snub Station Zero and into that I connected my Decware SEWE300B amplifier into the "Soft Start" receptacle (there is a Swiss Digital Fuse Box between the Snub Station Zero and the SEWE300B), my PS Audio NuWave Phono Converter and the Neo2 power supply for my Rega RP3 turntable with all the Groovetracer mods and an Exact2 cartridge into the two other receptacles. My PS Audio DSD DAC Mk II and my PS Audio SACD Transport were connected directly into the Zen Line Conditioner (there is a Swiss Digital Fuse box between the Zen Line Conditioner and the DSD Mk II).

Immediately there was lower noise overall in the system and as a result a bit more mid-range presence, mid-bass texture, and an increase in perceived dynamic presentation. I was very happy with the sound. What I found very interesting--and pleasing--was that over the next few days the "noise" seemed to diminish even more and on the fourth morning I was truly surprised to hear almost all the "hum" I had been experiencing (not audible from the listening chair) had almost completely disappeared: I could stand right in front of the system and barely hear any, just a tiny but from one channel, probably noise from within one of the 300B tubes. And the overall sound was just so accurate and involving, with a dynamic presentation that just had me glued to my listening chair.

I'm going to pay these components one more big compliment, perhaps the biggest: when I have my PS Audio P15 repaired it is most likely going up for sale. I prefer the sound the system is dishing out NOW with these components.

No wonder these components have been such a great success. I now have just one more planned upgrade: another Swiss Digital Fuse Box or Infinity Fuse and two 6 x 30 Graphene Sluggos to use with the Zen Line Conditioner. I'm saving up!

I was pretty sure you would have this reaction Tony . . . I think you'll enjoy the Line Noise Black Hole even more as it seasons a bit more in, and you will really like the Snub Station Zero--it really does have a similar effect on the amp when it is in the "soft start" receptacle especially after about five days when it really comes into its own. You've got some good improvement ahead.

Great news HK! I am sure you are going to enjoy it. And yes, Mark is a great gentleman and I really enjoy communicating with him!

Good news, be sure to post your impressions, I think you'll really like the improvements.

Hey Lon, I just put in an order for one of Mark's "doozies." I'll add more once it arrives and I have had time to check it out. So far, I have been more than pleased with his products.

Yes, I think you have it figured out right. I suspected that was how it worked as well, and I can see both an advantage and the very real disadvantage that would like you prevent me from having the room for it to work.

Tony, eager to hear your impressions!

Now that everyone has some time on their LNBH and Snub what do you think?  HK, does the Mainstream listing mean it is obsolete with LNBH and Snub?

Mark told me he had one left of each. Once I paid ghosted on me. The snub arrived yesterday, 2 weeks later, but now told the LNBH is out of stock. I can’t complain, he gave me a killer deal.

I powered down my system to install the Snub and when I started it back up my streamer installed a new firmware image so the Snub came back out so I could assess the software upgrade first. I’ve honestly been really digging my two devices just plugged directly into my dedicated circuit. Always open to a possible upgrade though.

MM,

Yes the Snub has replaced the Main Stream so to speak. I had the Main Stream located in an AC receptacle that fed my PI Audio UberBUSS, which served my source equipment and CSP3. Now I have source equipment > Snub > UberBUSS. This sequence and combination sounded best to my ears, so the Main Stream is now up for sale.

The Main Stream really cleans up AC noise, but I just don't need it in my chain now.

HK

Hey Lon,  One of my Mainstream plugs no longer has a blue LED light.  How do you confirm whether one is working or not?  Thanks.

Ok sounds good.  Mine is also warm where my second one is not.  I will reach out to Mark and let you know.  Thanks

I just got notice from Mark that I'll get instructions to send mine back.

As for those that run cool when operating Mark included this note:

Please note that Peter and Richard changed the dropping resistor so the new ones don't run warm any longer

Great! I got a return label and dropped mine in the mail; I notice that a replacement is in process for me.

I received my Zero last week but still no word on the LNBH.

Interesting that you’ll put your LNBH on the front end of the Zero. That makes sense. For some reason I was thinking to plug Sarah into the LNBH when it arrives, and everything then with the Zero in front.