Static electricity affecting sound reproduction. Please help!!


Hi everyone,

I’m having some weird issues with static electricity in my audio setup and I would appreciate your thoughts and tips before something gets fried.

For context, humidity where I live is currently around 38 – 41% which is not too bad. My couch produces a significant amount of static electricity so whenever I have a listening session, I’m sure I will shock myself whenever I get up and touch something metallic.

My current set up consists of almost all-schiit components:

Bifrost 2 DAC, Audiolab 6000 cd transport, Freya S preamp, Mani phono preamp, Loki mini eq, Asgard 3 headphone amp and Vidar amp, all going to a Furman M-8X2 power strip/conditioner and into a grounded (as of yesterday) outlet. My outputs are Elac DBR62 speakers and I also have a set of Sennheiser HD600 and Hifiman Sundara headphones.

Now, to the issue. Curiously, I started noticing this since I incorporated the Audiolab cd transport and the Furman power strip about 3 weeks ago.

Previous issue: While being charged up with static electricity, whenever I touched any of the components, a spark would fly and a light shock would happen. All regular stuff and this didn’t have any impact on music playback. Previously all my components were plugged into a cheap, basic power strip to an ungrounded outlet.

Current issue: Since adding the cd transport and the Furman power conditioner (I’m not saying any of these two components are at fault at this point, but I noticed this issue since incorporating them), whenever I touch any of the components while charged with static, the music is interrupted for a microsecond and then comes back. For those of you familiar with the Schiit Bifrost 2 DAC, whenever there’s an interruption or change in the data stream being fed, there’s audible clicks which are normal. In my current situation, the interruption of the music when the static shock occurs is accompanied of a couple of quick clicks from the Bifrost and then the music continues without issue. Now, what is REALLY strange to me is that this issue is amplified -no pun intended, when I’m listening through headphones where I don’t even need to touch any of the components or any metallic surface for the music to be interrupted. I assume the static is traveling from my body through the headphones into my system somehow. By the way, this happens with both the HD600 (all plastic body) and the Sundaras (metal frame). It even comes to the point with the Sundaras where I can audibly hear the static "trapped" in the headphones when I discharge in the way of a high pitch until I touch the headphone cable if it makes any sense.

While I could dig deeper into the issue to try to isolate what’s happening, I have a few questions I would appreciate your input with before doing anything. My fear at this point is that the constant discharge of static electricity could damage some of the components If I try to isolate the fault through further testing and replication of the issue given that there is now a direct negative effect in the sound playback with a physical reaction in the form of clicks from the DAC. My questions are:

  • If the outlet where I’m plugging the Furman into is grounded, should/could the static discharge be still causing this reaction?
  • Would it be worth trying to isolate the issue with the potential risk of damaging something or should I just live with it and look for alternatives such as a humidifier to decrease static buildup, stop listening with headphones, using another device or contraption to discharge myself constantly, etc?
  • Is it “normal” for the static to be discharged through the headphones into the system even with the HD600 which are all plastic?

Thank you in advance for your comments, feedback and input. In the end, I just want to be able to sit down, enjoy the music without constantly worrying about frying something up.

 

128x128tarkus1984

     The OP mentioned having a typical household humidity of, " ...around 38 – 41% which is not too bad."

     Well, here’s the Science and why I said, "Get a humidifier!":

                   https://www.est-static.com/static.php

     Try for the 55% neighborhood, or: slightly above, for good results.

https://www.condair.com/humidifiernews/blog-overview/why-does-low-humidity-cause-static-electricity

+1 to the humidifier, at the very least 55%. Do not use electronic/ultrasound the solids in the water will vaporize and cover everything.

Even my house in Seattle, gets too dry so I use one of these Humidifiers I put the humidity dial in the middle and problems solved. No static at all.

Even the plants in the house like it.

hi again and thanks everyone for your kind responses. 

I will absolutely go for the humidifier and kill that damn static. I guess at first I was more interested in finding out which of the components in my system was causing the audio playback interruptions when the static discharge occured. For additional context I live in Mexico and it's still quite uncommon for typical households, at least in my region, to have house-wide heating, cooling and humidifier systems. I'll be going for a 6L Govee humidifier that I found on Amazon for about a hundred bucks and keep it in the living room where my system is located. 

In case anyone's interested here's my follow up report after some further testing. Everything points at something in the coaxial chain between the cd transport and the DAC. The music only gets interrupted when coax is being used. When using optical, playback stays consistent.

  • Tried a different coaxial cable, no change. Music still gets interrupted briefly when static discharge occurs.
  • Tried a different DAC. Using both coaxial cables, no change. Music still gets interrupted.
  • Removed the furman power conditioner and tried two regular power strips. Same music interruption with one, however something funny happened when testing the other. If I discharged static by touching my preamp, playback was not interrupted. When I discharged by touching the DAC, then the music stopped for a micro second.

I found something even weirder now. CD transport playing through coax. I turned on the phono preamp to play some records later on the turntable and the signal ALSO got interrupted! No static discharge or anything this time. I just literally turned the phono on and the music got interrupted. I tried the same using the optical cable from the CD into the DAC and nothing happed. I'm starting to think the coaxial cable or some other component in the coaxial chain is SUPER sensitive to any change in electrical current.

As I mentioned, for my sanity's sake I will stop worrying and will be buying a humidifier over the weekend as well as static spray. As long as there's no static I should be a happy camper.

Have a nice weekend everyone!

As an added bonus, getting the relative humidity over 40% and towards 50% kills airborne covid a lot quicker than down around 25% RH.
There is a bunch of research on this dates back to the earlier corona type viruses.