Springray 2 Tanks Questions

Hello! I have two questions.

I am interested in further experimentting with reverb tanks. I know that the module is designed to use BB tanks, but I’m curious about the grounding scheme required. All the tanks offered by Intellijel have insulated input, grounded output. Is it possible to use grounded/grounded?

Finally I know noise can be an issue - I am having to move my SR2 as it picks up noise. What tends to be the biggest sources and what is the ingress point - is it through the tank circuit and any coupling that might occur with nearby devices? Does it enter the module through its power header? Does it enter by being patched to other modules? I’m asking because I am considering adding your balanced in-out module with my two Springrays to make a stereo effect to use as a send effect in my mixing setup. If the noise source is primarily the tanks that’s easy to deal with. If it’s europower then I may have other challenges (looking at a Pod34x powered case.

Thank you!

I believe the main noise source is the tank itself, especially when the small tank is mounted inside the case.
If you haven’t seen it already, you might find this video helpful for using Springray: https://youtu.be/Ls8zD5YxEEc

Thanks Scott! I had never come across that video in my searches - it was a wealth of info!

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Just posted this to MW, thought people here might like the idea…

A bit late to the game, but picked up a Springray2 last week with the small tank.
Then added the medium tank a few days later.
As expected, they are antennas! They pick up electromagnetic interference like crazy. Anyone who cut there teeth doing performances with digital synthesizers or DJ performances with Ableton Live - welcome to how we used to deal with it.
This brings me back to the days of playing a show with a tube-driven Fender Reverb amp or DJ’ing with vinyl on a pair of Technics 1200s. Hint: Electroacoustic devices are not “clean”.
Lucky for me - I’m pretty set on just being in my studio.
So I created a little isolation chamber for my reverb tanks - not so much for electromagnetic shielding, but to get them at a good distance away from my modular and studio equipment and protect them from kicks and bumps - at least unintended ones.

No better way to bury the noise issues than a cheap pine box (sorry… had to say it).

Soldered up some RCA-pinheader converters for the mini reverb tank connectors, and now I have remoted tanks A and B.
There is still hiss - which you can always expect with something electroacoustic in the signal chain - but the noise - IS GONE.
I can crank up the feedback and drive and sweep that filter boosted with a narrow Q - and it’s glorious!!!


Very cool! Does wood block EMF better than other materials?

I don’t have any definitive knowledge in that area - but I doubt it has that much effect.
In my business (IT), walls do have a massive dampening effect on WiFi signal strength, with glass and metal being the worst offenders.
I think the biggest effect this box has had on the reverb tanks is just the distance they are now from my modular, and things like digital circuitry and LED lights. there is now about 4’ of distance.
Tonight I’ll do a check to see if there is any change in the noise floor with or without the lid and I’ll get back to you.
If I had OCD, and wanted to really go nuts - I could line the box with copper foil and make a Faraday cage.

Great idea - but no need for Cu foil, just use aluminium foil from the kitchen if interference is still a problem. But you are of course correct that distance is a key factor, as the strength of electromagnetic radiation equals the inverse of the square of the distance from the source