I have 2 GC.1 and I’m very curious to know from other members which components seem to bring better results when connected to the CAD.
IME
actually my preferred combination
also experimented in the past
Another question: did anyone find big improvements from the new version GC.1.1 compared to the old one GC.1?
I recall the CAD people (who I have met in person and love dearly) telling me “No No No! Not Amplifiers! Source components!!!”. But it could have been a dream.
I should probably try plugging the tower that does nothing into a CAD block. Perhaps it would do less than nothing.
I had a few emails with Scott (CAD owner), he suggested this way. But he also recommended to try sources first, where his CAD GC is generally considered more beneficial.
It could be the class D amps? Does the class D amp produce more noise than a A or A/B design?
Hello, there are many ground boxes. Lesslos probably also has something in this area. Akiko Audio but you will also find what you are looking for on Aliexpress. The prices are also very different. Epluggs offers various plugs for interference suppression. I use RCA and power plugs. You make a difference. More black, better separation. You can also build a ground box yourself. I still intend to. I’ve already researched it. The best way to build a box is with thin copper foil with a large surface area. Connecting cables made of solid silver are possible. Filled in the right proportions with shungite, tourmaline, possibly a few other minerals, crystals or carbon. The smaller the minerals, the more effective. Best as a powder. Each component needs its own box. The amount of minerals and size of the box should probably depend on the size and weight of the connected component. There are some do-it-yourself suggestions on forums. If you want it cheap, order something from China or do it yourself after proper research. Greetings Andrew
Could be an improvement, a worm hole so to speak.
why non conducting minerals?
i’ve been thinking along these lines for a while, but with as big an ingot of copper as i can find…
An ingot shouldn’t work as well as something with a larger surface area as an anode in a grounding box.
Prefer a foil of copper or even silver. Foil coils for crossovers such as those from Mundorf are well suited.
Unroll the coil and fold it like a accordion or like a comb.
Connect this anode to component ground with a silver wire.
There should also have been positive tests with silver bars.
Shungite consists of carbon and is probably one of the few electrically conductive minerals.
Shungite is said to brighten the sound in a box. Warm tourmaline and dampen the sound a bit. It is good to make a mixture of shungite and tourmaline. More shungite than tourmaline Maybe some rock crystal, pyrite, hematite…or another mysterious sauce.
hmm yes surface area makes sense, powdered copper, if it wasn’t so reactive (with air) 
You need an anode with the largest possible surface area. Copper foil maybe better silver foil In order to convert the noise into heat, the box around the anode is filled with shungite, tourmaline and possibly some other additional minerals or crystals. On Aliexpress you can also get ready-made ones very cheaply. Greetings Andrew
After a few months (and system changes) sorry for revive this thread… again…
I’ve just received a new GC1.1 unit (to be added to 2 previous old units GC1) and BNC and spade cables.
First connection combination:
1 GC
2 GC
I’m following Scott Berry’s advice: because of both Innuos units have signal and chassis ground NOT separated, it is possible this particular grounding configuration.
After less than 2 hours I’m liking what I’m hearing, the system “sounds nice”
Tomorrow I’m going to add 3d new GC1.1 in this way
The MSB DAC is already connected to the MSB amp, via its own ground cable as recommended by the manufacturer.
I’m also evaluating the purchase of the GroundMaster City (250 euro), which lot of Puritan owners are finding working very well with the 156.
I want to make sure I got it. You are using three grounding boxes for your system, and with each additional ground box you are hearing incremental SQ improvement, right? The question is can you use two grounding boxes with more cables to connect all gears? Do you have to have that many boxes? Does the first improves more than the 2nd, or does each one add equal amount of improvement?
But you are not done because you will add another grounding box for Puritan PSM156. Will adding more grounding boxes always improve SQ? Is it possible too many may calm the system too much? After saying that, I am interested to know about this GroundMaster City since my Puritan will be here shortly.
I do not think I can walk behind my rack safely if I add all these grounding boxes in the back (where elso can you put it?). I am still trying to figure out where is the best place to hide the Puritan, and I need to hide it before my wife comes back from Asia. 
I thought you were going to stand the 156 up on it’s faceplate? You just use one Groundmaster City for the 156 to start with. It plugs into a wall socket and the 156 plugs into it so no boxes on the floor.
I plan to place it vertically on top of four isopods behind the rack, but does it come with mounting stand? I will decide when it is here.
The Isopods are not really needed unless you just have them and feel the need to use them. It stands up on it’s own on carpet just fine. No the stand is an extra accessory. Place most likely to have it in stock would be Archon Audio in Chicago area. The US distributor is in the same area.
Yes I’m already using 2 GCs since 2 years, also after my room refurbishment and new gear I’ve always found they work. Sometimes happened that I forgot to plug them back after re-cabling the system for whatever reason, each time I felt something missing, a lack of calm and general relaxed kind of thing.
I was quite surprised also by the CAD Ground USB, a sort of USB dongle/key, plugged into my Statement. It seems that you can never do enough when it comes to fight noise in digital domain. To be clear, I’ve always had the opportunity to try these products before buying them, and after a week or so I’ve always decided to keep them.
This 3rd GC1.1 is here for a week to be tested, so no risks. If it works ok, otherwise it will be sent back.
They lay on the upper shelf of the rack, right/left the TT and there is enough room for the third. The Puritan is (temporarily) placed in vertical position, seated on IsoAcoustics pods, see on the left corner of this pic:
The GroundMaster City is intended to be plugged directly to a wall socket and connected to the PSM156 ground lug via a green ground cable. It is designed to clean the earth part of the house circuit. CAD boxes are fighting signal ground in the system, especially on high frequencies.
I should give you my impressions in a week… stay tuned.
Nope, you need to order it configured for that purpose, but I don’t recommend it because in future you can decide to keep it vertically or horizontally at your convenience.
The IsoAcoustic feet, that I have in large quantities, are just to keep it clean, without contact with the floor to avoid stretches.
Thanks, I found four spared Iso-pucks in storage that I can use.
An early surprise:
I will start with DS MK2 first, and I will not start evaluate it until tomorrow at the earliest.
can it be plugged into power plant, or it has to go to the wall?
Guess what? I asked the same question to the dealer today!
I suppose it must be plugged to a wall socket, though.
Glad to know your new toy is already there, enjoy. Hope it works like mine, awaiting your first impressions, as usual if it doesn’t sound nice immediately it never can sound nice in future (that’s my approach).
