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Power Cords - Search For Sample Recordings


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#51 DarrenW

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Posted 22 February 2011 - 09:36 PM

View Post:), on Feb 22 2011, 10:24 PM, said:

Yeah too hard to actually plug in a power cable and listen if it makes a difference  :rolleyes:


Not possible, Al.......... The OP stated all of his/hers power cables are captive! Although I would think the HTPC would have a detachable power cable............

Even his/her AVR has a captive power cable.

He/She obviously needs someone else to carry out the 'experiment'..................

#52 mello yello

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Posted 22 February 2011 - 09:38 PM

well for once, al, I can say It Wasn't Me


:winky:

#53 :)

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Posted 22 February 2011 - 09:43 PM

View PostDarrenW, on Feb 22 2011, 10:36 PM, said:

Not possible, Al.......... The OP stated all of his/hers power cables are captive! Although I would think the HTPC would have a detachable power cable............

Even his/her AVR has a captive power cable.

He/She obviously needs someone else to carry out the 'experiment'..................

As I've said before if people have such old stuff with captive cables, or some under $1k avr with captive cable you'd think be a lot better stuff to be spending their money on. Power cables I would have thought last thing on their mind. If they're really wondering if something makes a difference or not. Am sure quite a few avenues someone can explore. Take treb for instance he drove 2 hours ? to someones house to experience for himself. Not saying have to drive 2 hours. I can think of half a dozen retailers I can visit to explore something that of benefit or not. If theres a will there's a way....but for some I think it's just a easy for someone else to do it...and they'd rather sit back and argue.

#54 mello yello

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Posted 22 February 2011 - 09:44 PM

kudos to MLXXX for thinking outside the square though

as Albert Einstein once told me

man should look for what is, and not for what he thinks should be



or was it Young Einstein

"Just a moment Mello, Im having an idea"

B)

#55 :)

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Posted 22 February 2011 - 09:47 PM

View Postmello yello II, on Feb 22 2011, 10:44 PM, said:

kudos to MLXXX for thinking outside the square though

as Albert Einstein once told me

man should look for what is, and not for what he thinks should be



or was it Young Einstein

"Just a moment Mello, Im having an idea"

B)

Sorry I thought it was

Man should get someone else to look for what is  :lol:

#56 mello yello

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Posted 22 February 2011 - 09:48 PM

when is that movie ever going to be on BluRay aj ?  :mellow:

#57 MLXXX

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Posted 22 February 2011 - 09:50 PM

View Postmello yello II, on Feb 22 2011, 08:46 PM, said:

Quote

~ ~ ~
It is only with hard evidence that this type of scepticism can be overcome, if indeed hard evidence can be found! If and when it is found, we may wish to explore what caused the audiophile equipment to perform differently.

MLXXX with all due respect but this whole thread sounds like just an exaggerated vehicle for you to just put forward your opinion that corresponds to the same opinion you had in Power Cords  I and II

especially the highlighted excerpt at the end where you just forward another similar opinion to yours
The part you highlighted was a postscript. It reflected the results of an attempt of mine to find support for power cord differences in overseas forums. What I mostly found was lack of support, and I quoted an example of that.

As for my interest in why power cords can make a difference for some model power amplifiers and not others, I don't understand why you seem to see that as a negative. Surely, it is natural to be curious and to understand what is preventing an audiophile device from operating at its best when connected with the power cord the manufacturer provided with the audiophile device. Why do you object to that?

Quote

couldnt this all have been kept in the Kajack BT thread ?
  • The first thread was theoretical.
  • The second thread (BT at Kajak's) is about an attempted BT by listening live. That thread reached an amazing length and had still further posts added to it today.
  • This third thread is intended to offer an opportunity to anyone in the forum to witness for themselves the 'night and day differences' that others have experienced.

Quote

even if you succeed in accomplishing getting sound files on this forum how is anyone going to be able to distinguish any difference coming from regular PC speakers...not that mine are regular PC speakers but I still wouldnt be able to discern any subtle variations at any stretch
I have my HTPC hooked up to my main AVR. I assumed that others would be able to download the files and transfer them to a media player of some description hooked up to a good hi-fi system.

I note that if anyone is to do automated ABX testing, they will need to use a pc.

However to keep things simple for those who may need to burn CDs, I'll supply some files in 44.1KHz 16 bit stereo format; tonight if I have time. My files will not be of power cord differences but are in response to Drizt's suggestion.

View PostDrizt, on Feb 22 2011, 07:18 PM, said:

I was just thinking that people seem reluctant to contribute if the OP hasn't done it himself (added measurements/files to this thread).  It doesn't really matter what you compare as long as you can give an example of what you are asking for.  That is all I was trying to get at.
Ok well I might try some recordings tonight of a ghetto blaster style CD player vs a Blu-ray player, playing the same CD.

I had originally intended to capture and master at 48KHz sampling, but given that some people may need to burn to CD, I'll revise that plan and master at 44.1KHz.  (I will capture at 24 bits because level adjustments will be needed post recording. I'll then dither to 16 bits for compatibility with CD burning.)

_______

Note: people just capturing power cord differences could use 16-bit capture as there will be no need later to manipulate the files to match levels between recording sessions. Any difference in recorded level will presumably be due to the different power cord, and must be preserved.

Edited by MLXXX, 22 February 2011 - 10:09 PM.


#58 mello yello

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Posted 22 February 2011 - 09:51 PM

View Post:), on Feb 22 2011, 09:47 PM, said:

Sorry I thought it was

Man should get someone else to look for what is  :lol:

"Though theyve belted you and flayed you
By the living God that made you

You're a better man than I am, Gunga Din."

:D

#59 POV

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Posted 22 February 2011 - 09:52 PM

Fellas....can't we all get along.  Time for a group hug.

AND LETS ALL REMEMBER WHAT"S IMPORTANT HERE

:P

#60 mello yello

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Posted 22 February 2011 - 09:55 PM

View PostPOV, on Feb 22 2011, 09:52 PM, said:

Fellas....can't we all get along.  Time for a group hug.

AND LETS ALL REMEMBER WHAT"S IMPORTANT HERE

:P
that is so disappointing I was so hoping it was Chopsus' Best Racks from 2008 clip  :wacko:

#61 MLXXX

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Posted 23 February 2011 - 04:07 AM

View PostDrizt, on Feb 22 2011, 02:13 PM, said:

MLXXX,

I know you can't compare power cords (due to your devices having fixed cables) but perhaps it would help to get the ball rolling if you can do the proposed comparisons on something else.  E.G. compare the outputs when using two different CDP's (level matched as best as possible).

View PostMLXXX, on Feb 22 2011, 09:50 PM, said:

Ok well I might try some recordings tonight of a ghetto blaster style CD player vs a Blu-ray player, playing the same CD.
I made but had to discard recordings of the ghetto blaster - very poor sound, too different to the sound from the blu-ray player.

I then decided to use an old Denon 5-disc CD player and compare it with a current model Panasonic Blu-ray player.

I made 44.1KHz/24bit recordings of track 1 of a CD with the line input of an Asus Xonar Essence ST card on a pc running ubuntu.

I found:
1. Doing two takes of each source was very useful as a control.  Both players proved stable in their speed relative to the sample rate of the Asus Essence.
2. The players happened to be closely matched in their output amplitude (about 0.7dB difference).
3. The players differed in playback speed relative to each other: a slow drift.

The sound was very similar, but discernibly different. I will probably have time to finalise level matching, alignment and trimming of the files for upload tomorrow night (i.e. Wednesday night Australian time).

Edited by MLXXX, 23 February 2011 - 04:35 AM.


#62 Gutty

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Posted 23 February 2011 - 05:57 AM

View PostMLXXX, on Feb 23 2011, 05:07 AM, said:

I made but had to discard recordings of the ghetto blaster - very poor sound, too different to the sound from the blu-ray player.

Probably the low grade power cord... :ninja:

#63 gone_bush

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Posted 23 February 2011 - 06:12 AM

Now don't you start!!!  :wacko:

#64 Gutty

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Posted 23 February 2011 - 06:32 AM

View Postgone_bush, on Feb 23 2011, 07:12 AM, said:

Now don't you start!!! :wacko:

Oh come on mate... I've been a good little boy and pretty much stayed out of all 3 stupid threads... :unsure:

Except for my one post about the machine to measure fart potency :P

Ok, probably time i went back to the Currently Spinning thread anyway....

#65 gone_bush

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Posted 23 February 2011 - 08:12 AM

View Post(_*_), on Feb 23 2011, 07:32 AM, said:

Oh come on mate... I've been a good little boy and pretty much stayed out of all 3 stupid threads... :unsure:

Except for my one post about the machine to measure fart potency :P

Ok, probably time i went back to the Currently Spinning thread anyway....
OK, fair enough. Based on your valuable contribution (*) to the BT thread, I guess your forgiven.  :P

Your post is probably one of the more lucid posts in that whole thread!  :winky:  

#66 ajm

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Posted 23 February 2011 - 08:16 AM

View Postgone_bush, on Feb 23 2011, 09:12 AM, said:

Your post is probably one of the more rancidposts in that whole thread!  :winky:   :ninja:

Fixed.

#67 bassett

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Posted 23 February 2011 - 08:33 AM

Quote

All I see is yet another display of a arm chair know it all, that believes others should do all their handy work for him.

But what about all the cut & pastes he's collected, on the subject

#68 bassett

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Posted 23 February 2011 - 08:38 AM

View PostPOV, on Feb 22 2011, 10:52 PM, said:

Fellas....can't we all get along.  Time for a group hug.

You'll be happy if we all sit round the fire , toasting marsh mellows, and singing  "Come-by-bloody-are"

Well I'm not going to do it,  So there    -_-

#69 mello yello

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Posted 23 February 2011 - 08:42 AM

View Postgone_bush, on Feb 23 2011, 06:12 AM, said:

Now don't you start!!!  :wacko:

real translation :

"[Please start, so far Im the only disruptive troll intent on repeating my stance over and over and over again, ad infinitum, until I have achieved my real purpose and that is to shut down a thread I wasnt  interested in in the first place rather than sticking to my own credo of just simply avoiding it, however making an ass of myself is much more fun and generates more self amusement]"

that about sum it up George ?  :D

#70 mello yello

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Posted 23 February 2011 - 08:43 AM

if anyone has any objections to the principles or the assertions made regarding power cords I , II and III please you are welcome to state why, where and if at all possible, respectfully  :)

its an open forum and everyone is eager to hear the reasons and pros and cons

some have been already heard, some are unmoveable in their opinions, a lot of people remain silent and are eager to learn. There seems to be still a lot to learn, or maybe nothing to be gained.

...whatever the outcome, at least we explore, rationalise, experiment, discuss and hopefuly draw conclusions.



...its how Young Albert Einstein split the beer atom and was able to put the bubbles back into beer

B)

#71 mello yello

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Posted 23 February 2011 - 09:23 AM

View Postbassett, on Feb 23 2011, 08:38 AM, said:

You'll be happy if we all sit round the fire , toasting marsh mellows, and singing  "Come-by-bloody-are"

Well I'm not going to do it,  So there    -_-
no-ones going to be  roasting my butt, Dorothy

:lol:

#72 mello yello

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Posted 23 February 2011 - 09:25 AM

Good Morning


gentlemen

B)

#73 gone_bush

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Posted 23 February 2011 - 09:37 AM

View Postmello yello II, on Feb 23 2011, 09:42 AM, said:

real translation :

"[Please start, so far Im the only disruptive troll intent on repeating my stance over and over and over again, ad infinitum, until I have achieved my real purpose and that is to shut down a thread I wasnt  interested in in the first place rather than sticking to my own credo of just simply avoiding it, however making an ass of myself is much more fun and generates more self amusement]"

that about sum it up George ?  :D
No, that is not a real translation, it is your, repeat, your spin on my words. You are entitled to your say, but your words in no way reflect my intent.

And my screen name is "gone_bush", not "George". I consider your attempt to connect me with past Presidents of the USA to be highly offensive. If you do not cease referring to me by other than my given screen name, I will report the matter to the relevant authorities.

#74 mello yello

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Posted 23 February 2011 - 09:43 AM

View Postgone_bush, on Feb 23 2011, 09:37 AM, said:

No, that is not a real translation, it is your, repeat, your spin on my words. You are entitled to your say, but your words in no way reflect my intent.

And my screen name is "gone_bush", not "George". I consider your attempt to connect me with past Presidents of the USA to be highly offensive. If you do not cease referring to me by other than my given screen name, I will report the matter to the relevant authorities.
:lol:

you mean the UN ?  :mellow:

OK gb , apologies if they arent your intentions...but you did admit you like taking the piss dont you  :winky:

Edited by mello yello II, 23 February 2011 - 09:45 AM.


#75 Gutty

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Posted 23 February 2011 - 09:51 AM

View Postajm, on Feb 23 2011, 09:16 AM, said:

Fixed.

Ohhhh..... :(