CAD Ground Control is Stereophile Product of the Year

The Puritan PSM-156 does not connect to P15. As good as P15 is, I found M1200 amps are a bit more dynamic plugging into the wall. I’m using PSM156 with M1200 and MK2 now separately from P15 where my other components are plugged.

Both of them are plugged into Furutech NCF socket/plate.

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I have a few wooden wine boxes in garage, and now I found a perfect usage for them😆

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Inside the boxes you can use copper foil with large Use surface. For crossovers, there are coils made of copper foil that can be unrolled and folded in a zigzag manner.

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Can you link the Adi O channel? I’m not able to find anything

Here is a link to Adi O’s channel. However, I could not find his videos regarding how to build grounding boxes. Maybe he has taken down a few videos? I don’t know. He really focus on getting to audio nirvana via highest resolution possible via putting pure silver everywhere (as I previosly mentioned, including rebuildning Audioquest Niagra and making his own cables). He tries to push boundries. https://www.youtube.com/watch?v=BMUHo12cCrc

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Thanks! I was especially curious about the Niagara rebuild.

Talk to him in the comments. He usually answers quickly. Inform that you like to se his Niagara rebuild videos and also ask if he has got more videos. I’ve seen him adding this kind of information upon request s previously. He usually seems to document both tweaking and serious rebuilds.

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He must have taken down a lot of videos. I’m missing at least 15 where Annette Askvik Liberty is played, the building of grounding box videos, the rebuilding of Niagara with pure solid silver and the rebuild of a Gryphon power amp. I’m also missing the videos where he talks about his system.

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I saw the gryphon rebuild yesterday. He really does like his Mundorf capacitors (tbf I really rate the mlytic hc and ag series too)

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As you have the old and new versions of Computer Audio Design’s “Grounding boxes”, have you heard a difference?

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I did only a very brief comparison, so take it with a grain of salt. New vs Old connecting Statement + Puritan Lug and DAC only. 24 hours each.
To be honest I couldn’t hear differences between them.
They both work. I kept the GC1.1 (that is supposed to be able to manage the earth ground better) connected to the Statement + Puritan, where I think the job required is harder to do).
It’s not an objective comment, I’d need to be serious and go deeper before judging but life is too short, sorry.

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Did you receive Puritan City? Did it make any difference on top of your CAD ground system at all? My memory is at the worst after big holiday parties.

Hi Donald, yes I received it and gave it a try last week. City into the wall, then connected to the Puritan lug. I was pretty sure to have already posted something but I could be wrong.
It seems to enhance the qualities already shown by the Puritan itself. The improvement is audible but not a night and day effect, to be honest.
I removed it from the wall to better understand the difference and it was clear a subtle change in noise floor reduction, background and engagement. I plugged it back again, where it is going to stay.
Maybe the CAD boxes are already working on the ground, mitigating the effect of the City. Using both of the devices together in my system should be my last step on this grounding rabbit hole.

The black box arrived, too. It distracted me totally from the rest. When I’m back home I also will play with the HFTs funny buttons… can’t wait.

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The new version is, therefore, only an evolution… Thank you for the response and have a great New Year’s Eve

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As I am interested in grounding boxes, I consulted the Russ Andrews site and they recommend the following connection system: connect the preamplifier, the dac, the drive, the clock then the preamplifier to their grounding box " and finally the amps in their “box”. This is the first time I’ve read that you have to connect several elements together before making a “grounding box” connection. I don’t know if those who use “grounding boxes” have tested this method but just in case, let me point it out…

are you suggesting the order they are done matters? Or which ones you should try Frist?

I am waiting for the 2nd Puritan GroundMaster City and five more cables to arrive. Puritan RouteMaster has 9 inputs to connect up to 9 components. So all my components (including P15) will connect to the RouteMaster. In addition, DS MK2 and M1200 are plugged into PSM156 conditioner with another GroundMaster City attached.

I believe I did it right according to their instruction. Luca, this is the way, right?

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Yep! That’s what they recommend on Grounding a system with the RouteMaster and the City.
In your shoes I’d connect a component at a time, with the green wire, to the RouteMaster. It should help to get an idea of what works better.

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I don’t recommend anything because from what I have read the result depends a lot on the system. On the other hand, I indicate that another manufacturer recommends another connection method which could be interesting to test for those who already have “grounding boxes”.

So they recommend connecting the Router to the Routemaster also? Has anyone grounded their router? All this grounding discussion makes me feel like I am missing a potential tweak. However my black background I am already getting makes me think it can’t be better.

I hate to think this might be like chasing another Master fuse bandwagon that took my system in the wrong direction regarding listening satisfaction.

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