I believe you... My amplifier is shielded by my own recipe... 😊
Build a Faraday cage around your equipment.
I just realized that there is an abundance of Material (cloth) that has EMF blocking characteristics on the market now. Considering it is a woven material flexible and can be easily sewn by ordinary means, this could easily be used to create a simple form of a faraday cage around your high end stereo equipment. They even have Curtains for your windows. I intend to experiment with it and have already started looking at potential heat problems and effectiveness of ONLY a partial cage, because of course you want to leave much of the Front and back of your equipment open. I believe it has a lot of potential in stopping interference between individual pieces of your equipment package and especially for those who like me have their setup contained in a rack/structure of some kind. There are numerous places that can be approached like even laying a sheet of the material over cable runs to keep out stray signals. This can be done in simple ways or you could get very deeply involved in configuring everything in the system to incorporate the blocking material. Some simple places it could be utilized are simply a sheet of it placed on a shelf before placing the equipment on it or as a simple barrier between pieces of equipment. Attention to the types of material should be considered a high level of concern as the different types have different characteristics. Has anyone else experimented with this?
Showing 5 responses by mahgister
I dont say my homemade invention and recipe is better than a technological well done shield... But i designed my own shield, which did much than just shield,for my ears... I used it on very critical location as a router... Or a main electrical grid box.. Or around my amplifier and on top... I called it my "golden plate"... Some people laugh at me but i laugh last as it is the case sometimes ...😉 I used shungite plate doubled with copper tape and for some location near the amplifier some minerals as quartz etc to tune and balance the result for my ears... ( i am proud because all my devices are homemade or low cost one which i modified)
http://*https://www.percyaudio.com/Catalog.pdf The pubicity page 14 describe it as such, i underlined the words of interest for me ; «TI SHIELD: Unique composite shielding material from Texas Instruments for blocking EMI & RFI interference. Conventional
Shungite and copper complement each other for my ears.. «The results of the interaction of EMR with samples of materials of absorbers and the dependence of the transmission coefficients on the angle of incidence of electromagnetic waves (EMW) in the frequency range 5.3-10.6 GHz are obtained. Research in these frequency ranges is crucial and relevant with the development and transition in the future of systems and mobile cellular networks of promising generations to higher radio frequency ranges. The use of powdered shungite for the creation of EMR absorbers in ultra-high-frequency radiation (UHFR) range has not yet been studied enough. Technological values of the selected EMR absorbers in comparison with other geomaterials: strength of stone-like shungite species, high indicators of density (for example, 2.61 g/cm3 – “TS” brand; 2.49 g/cm3 – “TK” brand) and mechanical resistance, high thermal and chemical stability, low cost, good mixing with binders. The test samples provide a decrease of EMR level due to the presence of absorption effects.»
Anyway shungite had other very useful side effect: https://pubmed.ncbi.nlm.nih.gov/14968159/
And people can call it a placebo effect or not, i dont mind, because i never bought anything to create me embeddings mechanical, electrical and acoustica controls, except very low cost device as 10 bucks Schumann generator i modified... Ok i bought a ionizator and did not modify it thats all.. 😊 I modified even my headphones with complete success, but i disliked them all even after modification but not the best of all of them the K340 i loved it completely AFTER my modification ...
i say that to MOTIVATE people and say to them : learn HOW to trust your ears... Dont upgrade FIRST , buy low cost and create your own listening experiments... You will laugh listening many costlier audio products after it, because there exist a minimal threshold of sound satisfaction and an optimal threshold .. The difference in cost between this two threshold is huge...The difference in perceived specifics acoustical factors is way less than you think between these two thresholds ...
Price tag WITHOUT acoustic basics learned by the owner is often rubbish... Most of the times...and if not useless for those who cannot afford 20,000 bucks amplifier etc... Audiophile experience for the INFORMED poor is possible, i own it...With speakers/dedicated one time now with headphone... |
I created years ago my "golden plate" as protection and filters : shungite+copper...I used as many as 50 as part of my electrical embeddings control.. ...With headphone i used them around my amplifier and no more in the electrical grid of the house because i sold my house and speakers now... ...
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Problems in audio are often rather evident as audible fact... And most of the times there exist specific technical solutions for any "problem"... But the main task is not only to solve evident basic problems in the mechanical, acoustic and electrical dimensions... It is also to think about "optimization" of an audio system which seems to present no particular problem... Sometimes we search for a way to improve it for the sake of doing so ... And some problems are easy to detect as problem... But some are undetectable at first ...Because the owner had no audible idea experience about this factor which did not appear as an audible problem... I read this post thread from the OP as a reflection around RMI and EMI and cheap ways to experiment about it... .. Then it is more a possible optimization proposed set of experiments than a "tweaK" in search of a problem for me... Most people for example will call a useless "tweak" any use of unorthodox ( schumann generators) or even a classical device ( Helmholtz resonators) to "optimize" a room... Because they perceived that their room is OK already... But most of the times their room is not "optimal" at all but they dont know it because we must do the optimization experiment to know it in the first place... In the same way, vibrations affect the gear, it is a problem but there is always ways to go further than simple classical ready made sold solutions ... I used a combination of devices to optimize which i never perceived as a problem to solve because it was unaudible as problem when i think that perhaps vibrations is a problem... In the electrical dimensions it is the same.... I used many unorthodox devices to optimize with succeess my amplifier but i never did it because i perceived a big problem... It was a way to optimize it... Many of this devices homemade has been ridiculed here even if they cost me nothing and they worked for my ears... Then i welcome any good faith proposition open for discussion without rejecting people or judging them... Is it not more interesting ?
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Interesting matter and thread... And i think your thinking and opinion are interesting... We can discuss as friends and learn... And if we disagree it must be just an interesting discussion... Insults are only proof that someone is not very gifted... Welcome here... By the way i am not interested either by what cables are the best nor which speakers are the best... Anyway i am now on headphone and did not need to know which one is the best because i already know it... 😁😉😊 |