Originally Posted by ConnecTEDDD
With respect to your comment, i know your background already.
Plasma Technology is very sensitive from the quality of the power it gets. I very simple example that ALL Plasmas are coming from factory with better power cable than LED-LCD and with ferrite attached at cable ends. Have you seen any LED with ferrite attached at the cable?
Plasma when it's working they polute the other devices connected to the same outlet because they return noise due to their design (due to their switching power supply).
A better cable is reducing this or cancels entirety this.
This is an incorrect assumption. In the world of electronics, there is only ONE reason that there are ferrites applied to a power cord... they are required to be there in order to meet electrical regulations set by various various countries and regulatory agencies... the standards are these agencies set vary somewhat. Ferrites are very narrow-bandwidth devices. If you have a electronic product that has an emission problem with 14,000 Hz, 21,238 Hz, and 33,174 Hz, you would need 3 separate ferrites... one to suppress each frequency. Ferrites are not wide-bandwidth noise eliminators. I received one LCD panel for review with 5 clip-on ferrites that had to be snapped-on to the power cord in order to use the product legally. That doesn't mean the product is "better" for having ferrites. It simply means the product REQUIRED the ferrite(s) to pass regulatory agency requirements for electrical (or RF in some cases). (One of my jobs over the years involved agency compliance testing and power supply design). In general, plasma TVs use more power than LCD TVs and you should find that most plasma power cords have a larger wire gauge than LCD power cords on average. But that does not mean the plasma power cords are "better". They are different because they need to be different. Using a "plasma" power cord on an LCD TV does not make the LCD TV better. Audiophiles have been misled, mostly by ignorant reviewers but sometimes by tweak vendors looking to sell something that's unnecessary). Ferrites are not used to make the INCOMING power better, they are used to solve emission problems due to a product's operating characteristics. Generally, if there is an emission problem with a power supply, there are 2 ways to fix it... redesign the power supply (fairly expensive and time consuming) or apply a ferrite to the power cord (cheap and quick if you can find a "stock" ferrite that suppresses the frequency you are having trouble with... if there is no "stock" ferrite that's ideal for your application, manufacturers of ferrites have a "custom design" option where you tell them what frequency you need to have suppressed and how many dB the suppression has to be and they design a ferrite for that application. This is a little more expensive, but is typically much cheaper than redesigning the power supply. Plasma pixels operate at a 600 Hz rate (most common rate in current displays)... plasma pixels are either on or off... there is nothing in the middle. And a power cord, power conditioning, or HDMI cable cannot and does not affect the 600 Hz rate, nor the on/off nature of the pixel. To make a 10% red pixel, the pixel is "on" for only 10% of the operating cycles... but to keep entire gray areas in the screen from pulsating together, plasma displays randomize the "on" cycles and that is easy to see when you are very close to a plasma display... dark areas look like a swarm of mosquitoes rather than like a smooth, steady, gray surface. LCD pixels are "clear" for 100% (or 109%) red, green, or blue and "opaque" for black (color comes from filters layered with the LCD layers). LCD pixels can be "partially" gray so that only some light is blocked. You could make an argument that LCD pixels are more sophisticated than plasma pixels since plasma pixels can only be 100% on or 100% off at any time. Of course, LCD pixels have other issues like latency.
Originally Posted by ConnecTEDDD
I didn't see any improvement in Color Gamut or Luminance Levels using Power Conditioner or Expensive Power Cable, but i saw more 3D Depth in image , was more solid, more analog-like image.
Since meters are more sensitive than eyes, you would be able to measure a change in gamma if there was more apparent "depth" in images. There's really no other image parameter that could be involved in perceptually improved "depth" in images. In the analog/CRT world, higher quality power MIGHT improve the focus/sharpness of the electron beam and that "tighter" beam might make images look better. This does NOT happen in digital video displays... pixels are ALWAYS exactly the same in digital displays because they are "fixed" in size and shape... you cannot "focus" the pixel better or worse (assuming you are using the best control settings for Sharpness and other TV controls so that you aren't getting blooming or other artifacts).
Originally Posted by ConnecTEDDD
I have no idea if a power conditioner/expensive power cable can improve other technologies like LED,Projectors etc, i'm writing only my personal experience, i have tested before buying these solutions and i saw impovement, the difference is not day/night, but exists with my eyes/ears.
The sound quality while i'm listening music or watching movie with my Plasma Display Opened was noticable better. Before conditioner/cable when i was opening my TV the sound had more background noise.
Understood, but I've experimented with all display technologies. I've tried to see differences with plasma displays made by Samsung, Panasonic,and Pioneer over several model years and none of those were affected in any way by power cords, power conditioning, or HDMI cables. Frankly, if any digital video technology was going to be changed by power cords or power conditioners, it would be LCD because the final drive applied to LCDs has always been analog... until just recently. Sony's new-ish 4K projector has the first LCD imagers (Sony's version of LCoS, SXRD) that have been addressed digitally. But I see no differences with LCD TVs either.
Originally Posted by ConnecTEDDD
IsoTek is UK based company working at 220V/60Hz like Greece, maybe the filter is working better at that voltage/frequency as it designed mainly to that network specs. Working with a Power Network with problems these conditioners/better cables can improve things. If you have good power network without any conditioner or cable, then adding a conditioner / or expensive cable maybe will not make you any noticable improvement.
Speculating about how things might work doesn't help understand reality. There is engineering and science behind the design of power conditioners and power supplies. You also seem to be ignoring the irrefutable logic of the situation... to change a digital video image, you MUST change the digital bits assigned to each pixel WITH INTELLIGENCE. No random changing of bits will do anything to improve an image and power conditioning and power cords cannot make "intelligent" changes to digital bits. If an electrical engineer makes a filter for 220/50 or 220/60, it is SIMPLE... I mean like counting from 1 to 10... to make a filter that performs the same way for any other line voltage. We made equipment in the US for sale around the world and it was SIMPLE to make the equipment suitable to operate at other voltages and frequencies... there is ZERO magic involved, it is all science/engineering and the results are predictable.
I didn't want to get into a big argument about this... as I indicated in the previous post, it is my experience that everything and anything affects analog & digital music playback and analog video... some of the things I've discovered over the years seem kind of silly, mostly because they can't be explained by what we know today (of course there are a lot of things about the universe our science can't yet explain, that doesn't invalidate them).
Once again, I have to re-state, that the only way a power conditioner, power cord, or HDMI cable can change digital video images is if they change the 1s and 0s... none of those things can do that. You can feed the plasma TV HORRIBLE quality AC power with 20% distortion (or more) and the picture will not change (I have DONE THIS with square-wave AC power applied to a TV I no longer cared about). Poor quality power does not change the 1s and 0s - unless the bad power is so bad that the TV essentially cannot operate. It is the 1s and 0s that tell the pixels what to do. The only time AC power can change the picture is when it is SO BAD that the 1s and 0s are no longer accurate. But when this happens, you get 1 of 2 things... "sparklies" in the images (random pixels that are much too bright or much too dim) or you get no picture at all because data integrity is so bad, the TV can't tell what frame/pixel the data belongs to. Remember, when you send 8 bits of red, 8 bits of blue, and 8 bits of green, there is additional data with the packet of 6+ million pixels per frame that describes the frame sequence. BAD AC power does not change the 1s and 0s, nor does it change the 600 Hz sub-pixel operating frequency. Nor does it change the number of flickers for any plasma pixel (that's based on the 1s and 0s assigned to the pixel in question). Digital pixels ALWAYS look the same... 10101010 always produces the same shade of red or green or blue no matter how good or bad the electrical power is... once the electrical power gets REALLY bad, that 10101010 can get scrambled in some random way... when that happens, you get "sparklies" or no image and there's nothing in between. It's just a fact. A $14,000 meter doesn't lie. It sees changes in grayscale, gamma, and color that I cannot see - and the meter tells me NOTHING changes when I change power cords, power conditioners, or HDMI cables. And as I've come to accept that, I also don't SEE changes in images from those things either. And I had 34 years of professional training in analyzing the quality of still and moving images in all types of media (film, video, cinema, pro photography, cinematography, analog scans, digital scans, printing press, photographic prints, 2D, 3D, CRT, LCD, plasma, projection, direct-view, and even in different optics... lenses, coatings, etc.). Not much gets past me -- the image scientists who trained me are even better than I am at what they do, but I have had image quality assessment training that's just plain not possible to get as a "civilian".
I've said what I had to say... won't be posting any more on the subject here. I hope the logic and explanations are clear enough.