Hearing is believing?........power cables.......


For anyone who is skeptical about the difference a high quality power cord can make in your high quality audio system........try it.......hearing is believing. About 10 years ago when I bought my first "entry level" hifi system (B&K amp/preamp, Canton speakers) my audio advisor dropped off a Tara Labs Prism power cord. He said just try it for a week and if you don't think it makes a difference just return it. I, like most unfamiliar with high quality cables, was skeptical.......how could a cable 1 meter long from the wall to my equipment make a difference? I put it on the power amp and yes I could definitely tell there was a more defined bass and overall clearer soundscape. I'm a musicians, so I figured maybe the "non audiophile" can't hear the difference. So my brother-in-law who is a bricklayer came over and we did a blind listening test. I randomly switched the Tara, sometimes trying to fool him......told him I switched but didn't........he could tell every time I used the Tara! So I was convinced that it was "wishful thinking on my part or particularly sensitive ears. If you don't think a great power cable can make a difference........take the challenge. Try one for a week and see (hear) for yourself!
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Showing 15 responses by shadorne

It sure can make a difference. Such a pity that many audio electronics are so badly built that you need a band aid like this - but some cost only $100 and are a cheaper solution than upgrading the audio.
@geoffkait  

Good to see you agree - electronics like Meitner which costs a small fortune really ought to have a decent power supply that filters out extraneous noise such that a band aid power cord is unnecessary.
@geoffkait   

OMG - so you really believe with all that money spent on the highest end gear that you can't even get a reliable power supply that filters out all mains noise - and therefore a band aid power cord is necessary.

If you are correct then most SOTA boutique audio really is pathetic in terms of performance.

Glad I got rid of the gear that did that for me, as I don't accept poor quality power supply design and I prefer to avoid band aids.
@geoffkait

"Calling power cords "band aids" doesn’t change the fact that replacing stock power cords in high end well-designed electronics with better power cords usually improves the sound. "

Ok ok so you say it is a fact.

I agree it is a fact and simply point out how badly designed and built these "high end well-designed electronics" must necessarily be.

Designing a good power supply and good mains filtering isn’t rocket science. If power cord companies can do it then why do SOTA designers and manufacturers have such a big hole in their technical skills???

Why do they fail?

Why is this not poorly designed and built gear? Is it acceptable to expect problems from the get go with SOTA gear?

Isnt a power supply supposed to filter out mains noise?
@geoffkait   

Nothing I said is Strawman.

You say SOTA gear improves with better power cords. FACT 

I do not contest that statement but ask is this acceptable from SOTA gear?

I ask if it is not reasonable to expect SOTA gear to work properly without special power cords? Or at least come with a suitable power cord in the first place (if it makes so much difference)?
@geoffkait

Hel-loo! If as you say I live in a cave at least it is in the real world. You are living in a tin foil fantasy land. I hope you are delivering high quality coal to you local power station so that you can enjoy the improvement from burning better coal. Everything makes a difference you know!
Very clever - just observational comments - Flat earthers and wing nuts and engineers to stupid to see danger!

Little things make little minds happy I guess.
@schubert

Of course the last few feet can filter power and improve performance of SOTA equipment - no flat earth or right wing nuts deny that. However, so can the power cord and power supply in the SOTA equipment. It is reasonable to expect an improvement with a power filter for cheap crap gear but why is it unreasonable to expect SOTA equipment designers to build an adequately filtered power supply to begin with?

What is is wrong with the knowledge of SOTA designers? Do they ALL only know how to build amplifier sections of electronics and were ALL asleep during the power supply design training course?

I will not resort to personal attacks like you, Geoff, nonoise and Rodman as it kind of looks very much like a right wing nut would behave when you attack people rather than address the point.

Why are SOTA designers so bad at designing power supplies?
@decibell

Explain. Why yes it is quite simple. Power can be noisy and badly designed components and appliances can make the power in your home noisier (even to the point of affecting other components) Switched Mode Power Supplies are a major culprit as they draw high current loads and work at high frequencies.

Think of a conventional power supply like a dam across a river - it stores the river energy and allows the river below the dam to be controlled and remain independent of the flow above the damn. A well designed power supply would be like a large dam across the river. The flow downstream is perfectly controlled and smooth. A badly designed power supply is like a very small dam or none at all and changes in the river flow up stream are transmitted down stream.

An audio device with a well designed (usually massive) power supply sees only consistent smooth filtered power to the audio signal components and is immune to what is going on in your household electrical power. A power cord does NOTHING for a well designed power supply. You only need an adequate rated power cord and you are hearing the music as good as it gets.

An audio device with a poorly designed power supply will see all forms of household power fluctuation right at the audio signal components and will therefore sound distorted and noisy at various times depending how clean the power happens to be. A different power cord may indeedhelp a badly designed audio device as most of the Fluctuations in home power are reaching the audio signal components.

So very simple. Badly designed power supplies allow household power noise to reach those components directly producing your audio (line level signal etc) and very well designed audio equipment with large power supplies (good transformers, large caps and proper separation of power from line level) relative to the audio signal components will NOT.
The equivalent of a dam is the large capacitors in a linear power supply. If big enough and filtered appropriately then the power cord only needs to be specified properly. If too small then performance will be variable depending on many factors - volume level, power supply levels during the day, power cords and what else happens to be plugged in and turned on.
+1 randy11

"Lack of a basic science education leads to worse things than wasting money on placebo cables, anti-vaxers for example"

Yup. For example, the whole global warming scare has demonized CO2 from what it actually is - a totally harmless trace gas and extremely minor infra-red absorber of which projected increases will only help green the planet at an absolutely negligible change to temperature.
I can speak to value of power cords from my perspective. About 100K invested in speakers. Zero spent on power cords.

Can I afford a $6000 cable jewelry to go along with my Daytona Rolexes - sure I can very easily afford but that would be a total waste of money as I only care about the sound of a power cord whereas a time piece is art to me.
@jmcgrogan2

Not trying to be ironic, my point was 100k in speakers and zero on power cord. Power cord does nothing for the sound for me - it is just jewelry like a Rolex does nothing to keep better time than a quartz watch. I prefer real jewelry as an aesthetic statement rather than monster sized power cords - BOTH are superfluous from a pure technical performance perspective.

Again my view and with my silly Rolex I am just as vain as the next guy with those 6K fancy power cords. However I am not deluded to think my Rolex keeps even remotely better time than anything else....
@stfoth

I have an early edition Daytona L series automatic with a Zenith movement. It still runs and is in perfect shape after 26 years of being worn on my wrist every day - my son will get this in about 24 years time when the watch is 50 years old.

I think it is not just the jewellery aspect that appeals to me (I do love the Daytona look) but that in this throw away day and age there is still something you can wear daily that can last so long! Certainly a robust design and if well maintained it would appear to last a lifetime or more. Others may prefer cars. To each his own fanciful vanities! Boys must have their silly toys!
@toddverone     

No need to worry about end of the world BS with regard to man-made climate change. I studied Atmospheric Physics in college. I understand the scientific principles and the physics very well and there is actually no cause for concern. Sadly there are a lot of unfounded extremist claims from many fund seeking fraudulent pseudo-scientists, NGO's, UN and especially enviro nuts. Practically anyone can make a prediction or extrapolate poor quality data and claim the sky is falling and unfortunately it has become very much du jour.

If you research it, you will find the claimed 98% consensus is a totally fabricated number by ONE researcher - it has been quoted endlessly by the proponents of catastrophe.