Good one! You should take that to the blowtorch thread and see how they like it there.
BTW, I think your stuff might have an effect, but I don't think your theories about why and what exactly is happening are likely to be right. Sometimes they are kind of close, though. There are less expensive ways to get good results, so no need to go overboard on some things and miss other things that cause problems.
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Why do you think they arent? Surely best design practice Incorporates mechanisms for dealing with all known environmental noise issues. I accept these cant always be applied due to time and cost constraints, but that's covered by bad design.
I've yet to experience a fault that couldn't be designed around. Have you?
I've yet to experience a fault that couldn't be designed around. Have you?
First, not necessarily a one-or-the-other proposition.
Then there is the issue of a user plugging two power cords into an outlet, say a dac and a power amp, then connecting the two devices with an audio interconnect cable. A ground loop, thus formed, can be a major problem and one not easily solved without adding some other source of damage to sound quality in the process (that includes distortion caused by high quality audio transformers used help ameliorate ground problems, and they always distort some). Obviously, the problem could be designed around by incorporating both dac and power amp into one piece of equipment, but that is often not what consumers want or think they need.
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@Ian
Do you have any listening impressions after installing the Rasmussen filter mod? Is it worth doing?
Thanks
Do
You are a member of the English-speaking country. You should not be problematic in reading English. Where do I write 30% improvement in sound quality for a 10kg copper block? I wrote a well-designed grounding box for 30% improvement!
The copper block I mentioned is just a simple means of verifying that the grounding box is really useful. However, a well-designed grounding box must contain a proper proportion of copper because copper is needed to enhance low-frequency sound quality.
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I once bought a pure copper plug that weighs 10KG, and it just makes the sound more bass sound.
According to my repeated experiments, I found that the metal material seems to absorb the relatively low frequency noise, which makes the sound system improve in the bass, and let us hear the sound become more bass sound. However, a good ground box design will balance in various sound bands without making the sound higher or lower.
The copper block I mentioned is just a simple means of verifying that the grounding box is really useful. However, a well-designed grounding box must contain a proper proportion of copper because copper is needed to enhance low-frequency sound quality.
........................................................................................
I once bought a pure copper plug that weighs 10KG, and it just makes the sound more bass sound.
According to my repeated experiments, I found that the metal material seems to absorb the relatively low frequency noise, which makes the sound system improve in the bass, and let us hear the sound become more bass sound. However, a good ground box design will balance in various sound bands without making the sound higher or lower.
'copper' sets you free
Get ten of these (10 Kg) and you may be in for a great sonic improvement... or not?! (call it a science experiment if your family may challenge the expense)
1kg Copper Mint Bullion Bar .9999 | eBay
... not sure how to fashion a 10 Kg plug out of it... I may settle for 10x 1 Kg plugs
Get ten of these (10 Kg) and you may be in for a great sonic improvement... or not?! (call it a science experiment if your family may challenge the expense)
1kg Copper Mint Bullion Bar .9999 | eBay
... not sure how to fashion a 10 Kg plug out of it... I may settle for 10x 1 Kg plugs
You can point out what you think is wrong, I can try to explain it with the theory I have verified through experiments. I can only say that the grounding box is so magical that many people can't believe it, but it's just that people doesn't understand it, even including many brand manufacturers, such as Entreq. I dare say they don't understand through their product structure design. They failed to fully grasp the complete theory of the grounding box so that they only used more Obsidian to get better ground box performance. My research and development found that the use of Obsidian in the grounding box has a critical impact on the performance of the grounding box. If I don't know the technology about the grounding box, how can I do it? If you don't trust a quiet person to make amazing products, you shouldn't trust Ian. How to verify the grounding box I mentioned, the method has also been explained, the rest is to see if you are willing to spend a little money to try. In fact, the chassis of audio devices is the same as the grounding box, except that the charge that the metal chassis can absorb is the upper limit. However, if the chassis is not connected to the ground on the PCB by wires, the chassis does not have the function of a grounding box. Conversely, if you connect the ground on the PCB to the chassis, you will have a change in sound, but not necessarily a positive change, because the material of the chassis is not good enough, and the package contains impurities that can cause noise.
In short, the grounding box is not a mysterious thing. If you don't believe in the grounding box, you shouldn't believe that the chassis has a meaning. It is no wonder that many DIYers don't like to use the chassis and it is even less likely to pay attention to the material of the chassis, because DIYer thinks that the chassis is just for beautiful.
For my system, I have used the chassis to prevent electromagnetic interference, but I'm not stupid to connect the chassis to the ground of the PCB, because the material of the chassis is usually very bad to reduce the sound quality. In contrast, I have used a well-designed grounding box to connect the grounding of the PCB, which will greatly improve the sound quality.
You can consider using pure gold as a grounding box function experiment. If the experiment fails, you will have no loss. However, it is important to note that you must use a high-purity silver wire to connect between the ground of the PCB and the gold block. The insulating sheath of the silver wire does not need to be stripped, and the silver wire does not need to be electrically contacted with the gold block, and you just only needs to make the silver wire wound on the gold block.
When the gold block is used as a grounding box, the sound of the system will be accompanied by gold-specific sound. Pure copper will not affect the sound characteristics so why do grounding boxes like to use pure copper. Of course you can use gold material as a tuning, if you like the sound of gold.
It's not that high-purity copper can have the best sound, so I can't explain why expensive Siltech is especially good. However, based on my experience, in the cheap materials, Japanese Oyaide silver and 102 SSC copper wire are really good.
3398-14 オーディオ機器用内部配線材 - 撚り線 - 自作用各種配線材 - オーディオ / 映像 ：オヤイデ電気オンラインショップ
According to the illustrations of MSB technology, they produced the world's most expensive DAC, we can know that according to their experience, grounding will transmit ground noise, a kind of trace charge that cannot be measured, so they highly suggest to use I2S, that does not transmit grounding noise, for trasmitting the signle. So ground noise is not mystery, but is science.
The independent grounding design that is often found in many PCB designs to prevent ground noise from interfering with different functional modules. However, if it is only to prevent ground noise from interfering with other functions or equipment, these charges still exist in the PCB, and ground noise will still interfere with that independent functional block. Some of them has a grounding terminal to give the user a chance to connect to a container that can absorb ground noise. When these charges are carried away from the PCB as much as possible, it naturally reduces the interference caused by the charge, thereby improving the sound quality.
In fact, everyone is often in contact with the design of the grounding box, but you don't know that it is about the grounding box, and then you reject the function of the grounding box. Don't you think it is very strange? You can't just because many grounding box makers can't explain the principle of the grounding box, you despise the grounding box.
There is another guy much like you at diyaudio. He uses the name Max Headroom, but we also know him by his real name, Dan. He says has some goop he puts on audio devices that gets the same results you claim, and he says the materials in the goop affect the 'excess system noise' that makes audio sound good or bad (at least that's as well as I can describe his explanation).
Anyway, if Max (Dan) is right, then his magical goop is all that is needed and we don't need an expensive metal ground box to make great audio.
Myself, I have trouble believe both of you guys. I know what works for a ground box for real, although it is no longer made, you can still buy a used one on ebay for around $500 and if your ground box can improve sound by 30%, then I would say this ground box can improve sound by 95%. It is Monster HTPS 7000 MKII : Monster Power HTS5100MKII Home theater reference PowerCenter 50644276767 | eBay ...a new one in a box for that price is a good deal, by the way.
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Did I mention my product? I didn't even mention the name! I mainly share how to further enhance the effect of shield. Isn't this the intention of this forum? Since you are confident in your comments, let's bet! Do not deliberately evade with other arguments!
I also did not intend to sell the grounding box. I have a job with a high salary, and the grounding box is just my amateur hobby, and I am not planning to earn commercial benefits!
However, I don’t understand that Westerners should pay great attention to science. Why can’t we just use science to discuss the issue of grounding boxes?
You also mistake the grounding box I designed. It is not made of expensive metal. In fact, most of them are Obsidian. Pure copper is only a small part. The 10KG pure copper block I mentioned is the ultimate requirement confirmed by experiments.
If you feel that you have to pay extra for buying pure copper, the cost is too high. In fact, you can replace it with a 1 meter speaker cable which usually the material should be very good. The pure silver wire is connected between the negative of RCA and the speaker cable.
Not afraid of everyone challenging the existence of the grounding box, I am afraid that you are afraid to try.
The Monster Power HTS5100MKII is a power supply filter. It is completely unrelated to the grounding box and cannot be compared. Furthermore, in order to achieve noise filtering, the power supply filter has a relatively large internal resistance and is easy to limit dynamics of power-hungry devices, such as power amp. Ian designed LifeO4 power supply for low internal resistance, you claim that the power filter can improve sound by 95%? From a scientific point of view, it should be Knowing what you are talking about is not trustworthy.
Since we have different opinions, let's confirm with a bet of $1 million! What do you say?
Anyone who knows a little about electronics knows that ground noise is there, and the grounding box is designed to absorb him. This is hard to understand?
Welcome to bet with me, if you are so confident in your comments, $1 million is simply for you.
No. Actually, it is more. I know how it was designed and by whom. How it works is still a trade secret. I was told about it and allowed to take the original prototype home for testing, but I was told that I cannot tell others all the details. It is a quite special device, the best so-called power conditioner ever made. All you can do is try it or not. It will be a $500 bet with yourself if you think it won't work.
Ah, but to lose $1 million would be very painful for me. You have a high salary, so it would be little pain for you if you were to lose. Even losing $1 would be very painful for me. How much would be painful for you? Maybe we can come up with a fair bet in which each of us risk the same pain if we lose?
Even if it has more features than power filtering, it can only be used for lower power devices, such as DACs, but why not use Ian's FIFO power supply for powering the DAC? Your comments are not scientific and do not match actual. Since you all know, why do you deliberately twist the power rate wave into a grounding box?
Anyone simply uses the speaker cable as a grounding box, and the sound is improved. I can't get any benefit. Why are you afraid to actually try it?
Anyone simply uses the speaker cable as a grounding box, and the sound is improved. I can't get any benefit. Why are you afraid to actually try it?