Reducing a computers EMI improves picture quality of attached monitors.

KompuKare said:
AC makes a lot more sense.

Had to look them up and they do indeed look ancient. Almost like someone wanted a bezel larger than on a CRT:
The images of the back seemed to show the stand as being fixed, but a review said that VESA mounting was possible.
Click to expand...

I've had these screens over 10 years, I estimate they have worked over 200,000 hours. I have 3 of them mounted on a Ergotron LX Triple Lift Stand. The screens as there glass fronted, there also compact fluorescent back lit so there is no blue light issues. Downsides they take at least 30 mins before the picture is correct from cold, also there not that efficient.

I'm not to far from OCUK, when I visit I look at the monitors on display and there is nothing I really prefer so keep running these old screens. A few years ago I did upgrade to an LED screen but I returned it due to eye strain, then went back to my ancient screens.
 
JasonM said:
They remove “Asymmetrical” as well as “Symmetrical” interference, Asymmetrical waveform is one that contains a DC component

taken from this

https://www.tlc-direct.co.uk/Produc...b1-kjVBUVP590rgBFrMI3YliBEOK1ZsBoCqHIQAvD_BwE
Click to expand...
Marketing BS.
EMI/RFI filters are basically low pass filters using inductors in series with load and capacitors in parallel with load.
Inductors resist change in current and hence have increasing impedance the higher the frequency.
Capacitors are opposite and conduct better the higher the speed of voltage change.
As result the higher the frequency of current component, the more its directed away from load.

http://www.cnemifilter.com/products...nverter-ups-single-phase-line-rfi-filter.html

It's ferroresonant type conditioners which would block DC.
By literally having big honky transformer in them.
 
shankly1985 said:
All I do know is I looked at reviews for the power 6 plug strip and it seems to get highly rated for the audio gang.
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Yes they work to improve audio and visual. There is an issue with them however, they are power restrictive. So if you place to much load into one strip it will begin to degrade audio.

So in my home office, where i'm typing this, I have 4 of them. 2 are on active speakers (1 per studio monitor), 1 is on the computer, then 1 more to power the triple monitors (the displays).

Then again for my HTPC in the lounge there is 2. One connects to the HTPC, and a second for the separates system.
 
EsaT said:
Marketing BS.
EMI/RFI filters are basically low pass filters using inductors in series with load and capacitors in parallel with load.
Inductors resist change in current and hence have increasing impedance the higher the frequency.
Capacitors are opposite and conduct better the higher the speed of voltage change.
As result the higher the frequency of current component, the more its directed away from load.

http://www.cnemifilter.com/products...nverter-ups-single-phase-line-rfi-filter.html

It's ferroresonant type conditioners which would block DC.
By literally having big honky transformer in them.
Click to expand...

For audio the bass is more connected using the Tacima, and as I understand this is a sign the mains AC waveform is asymmetrical.
 
robj20 said:
As good as the double wired speaker thread.

Next up, my food tastes better in the microwave with this cable as well.
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I'm guessing you have never tried?

Russ Andrews Kimber power cables absolutely work, they reduce EMI from the cable.

This video shows how twisting two cables reduces EMI.

 
JasonM said:
I'm guessing you have never tried?

Russ Andrews Kimber power cables absolutely work, they reduce EMI from the cable.

This video shows how twisting two cables reduces EMI.

Click to expand...
I know how twisting two wires reduces interference, I do it daily in my job. But that's with analogue video, and only with the video wires not power.
 
robj20 said:
I know how twisting two wires reduces interference, I do it daily in my job. But that's with analogue video, and only with the video wires not power.
Click to expand...

Twisting a video / data cable is much more important than twisting the power cable.

I'm only using twisted power cable the last 1-2 meters, if you were running many hundreds of meters of power cable, it would not be cost effective, plus that amount of twisting would not be required.

With power cables it's the twisting near the end that helps removes the EMI. Bit similar to ferrite coils that are placed very near the end of some DC cables.
 
Just to clarify this is what I'm referring to. The Tacima CS947 gives an improvement to audio / video. Then you get a further improvement if using the Russ Andrews cable, the cable in that photo is an older YelloPower. That said the Russ Andrews cable will give you an improvement even if it's plugged directly into the wall.

I recommend don't buy the Russ Andrews cables new, instead get them pre-owned from eBay where there cheaper. One thing to be careful when buying pre-owned is the cables can come a little loose in the plugs, so you have to open the plugs and check the screws are still tight.

There is a lot of demand for the Russ Andrews cables on eBay, if you find you don't like it, they are easy to re-sell.

AM-JKLWYMTUZAHxZmqETn6J4YIuW66EslVvnEb7rECgeR3SiTqNME-dSxRhcXblAuzYUCnXXU_TCk2iGLwNU5UaZMmXuoxIbo8p407QQ5FQPbbEKKlF7Lmu186QK3tCL5IKa3GPdwDvv9qtAT3iQ_54ChdDY=w799-h599-no
 
JasonM said:
For audio the bass is more connected using the Tacima, and as I understand this is a sign the mains AC waveform is asymmetrical.
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Propably some snake oil twisting of common and differential mode noise.
https://techweb.rohm.com/knowledge/emc/s-emc/01-s-emc/6899
And actually that Tacima seems to have only common mode choke and also Y-capacitors of full blown EMI filter are missing.

Ratio of facts to BS in audio side is nowadays identical to that in Trump.



JasonM said:
With power cables it's the twisting near the end that helps removes the EMI. Bit similar to ferrite coils that are placed very near the end of some DC cables.
Click to expand...
Doesn't work that way.
Twisting only minimizes how much that part of the wiring sends and receives EMI.
It doesn't filter EMI which has been already induced into wires.

That needs EMI/RFI filter in end of the wiring.
Something high quality power supplies have.
 
EsaT said:
Propably some snake oil twisting of common and differential mode noise.
https://techweb.rohm.com/knowledge/emc/s-emc/01-s-emc/6899
And actually that Tacima seems to have only common mode choke and also Y-capacitors of full blown EMI filter are missing.

Ratio of facts to BS in audio side is nowadays identical to that in Trump.



Doesn't work that way.
Twisting only minimizes how much that part of the wiring sends and receives EMI.
It doesn't filter EMI which has been already induced into wires.

That needs EMI/RFI filter in end of the wiring.
Something high quality power supplies have.
Click to expand...
I wouldn't waste your breath. It's like talking to a religious person.
 
JasonM said:
Twisting a video / data cable is much more important than twisting the power cable.

I'm only using twisted power cable the last 1-2 meters, if you were running many hundreds of meters of power cable, it would not be cost effective, plus that amount of twisting would not be required.

With power cables it's the twisting near the end that helps removes the EMI. Bit similar to ferrite coils that are placed very near the end of some DC cables.
Click to expand...

So many twists until you can use your mains cable as an inductive charger!? :p
 
The Russ Andrews cables have been tested and shown to give improvements.

https://www.stereophile.com/content/what-difference-wire-makes

What you should do is trust and verify what I'm saying, buy them from eBay and if you don't like them, then re-sell them.

I have improved audio and video, I was open minded and glad I gave them a try, I wish I had known about these 10 years ago. When you automatically reject without even trying your not learning anything.
 
Do you know if these cables will have benefits elsewhere? I'm tempted to buy a couple for my reef tank to see if they will make my fish live longer and improve my coral growth - possibly the reductions in EMI will prevent (or at least minimise) any distress caused by stray frequencies entering the water
 
Jay85 said:
Interesting, the tacima you recommended improved audio quality. Will have to check this with the psu plugged into it as well to see if there's any difference.
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Thanks for taking my advice, now you have better audio.
 
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What is this drivel review that keeps getting referenced as if there's any credible work demonstrated in it: https://www.whathifi.com/tacima/cs947/review

Mmm I say it sounds better now here's some referral links to go buy it cos you're that easy.

That's not how you demonstrate electrical components having a real not placebo effect.

Where's the test data on the output of this compared to a standard surge protector. The output should be meaningfully changed, the audio and or video should be meaningfully different.

But no, it's TRUST ME BRO IT SOUNDS BETTER (click referral links and buy plz).

Electrical power is not magic, audio and video signals are not magic either. Anyone avoiding doing proper measurements and going with feelings is full of it.
 
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