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Dean View Drop Down
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Direct Link To This Post Posted: May 15 2011 at 06:11
Originally posted by Sean Trane Sean Trane wrote:

^^^^^^^^^
 
Take your time for this test - Actually after checking, my two Hi-fi systems don't have mono switches either....
(the test I did was done with my old Yamaha CR1010 in the early to mid-80's)
 
 
BTW, I edited the post after you quoted it, but it won't change much to the message
 
As for the cables I bought, I was certified by the store owners that it had a few other metal strands in them (but they don't have a brand name written on them )...
 
I found the  bill dating from 95 when i bought my Yam (not the same as the Canadian chain I owned) hi-fi, I had saved it with the users' manual and warranties  >> I paid the equivalent of €35.00 (yesterday's value) for 4 x 1.5m (since I bi-wire my speakers)
 
 
read you tomorrow... I've got real life issues lined up for the rest of the dayWink
This test is a good starting point but unfortunately will not settle any arguments one way or another (just as similar tests have failed to do for the past 30 years). The problem with it is it will not settle any argument over clarity, imaging or soundstage since the source is monaural, so even if I said there is no difference during the test (and for that the gauge or conductor cross-sectional area of the two cables must be identical or all bets are off) that  cannot be extrapolated as a valid comparison for a stereo source. This is also true if I can hear a difference, though I will gladly admit that a difference exists if it does, I still will not be able to extrapolate that difference to a stereo image.

Edited by Dean - May 15 2011 at 06:12
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Direct Link To This Post Posted: May 15 2011 at 06:30
Originally posted by Dean Dean wrote:

Originally posted by Snow Dog Snow Dog wrote:

Dean, when you say lamp cable do you mean the cable you stick in the socket in the wall providing our electricity?
Essentially yes. Good old fashioned twin-core mains cable.
 
 
 

Is the Live and Neutral wire from everyday appliances the same or is it too thick?
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Direct Link To This Post Posted: May 15 2011 at 06:52
Originally posted by Snow Dog Snow Dog wrote:

Originally posted by Dean Dean wrote:

Originally posted by Snow Dog Snow Dog wrote:

Dean, when you say lamp cable do you mean the cable you stick in the socket in the wall providing our electricity?
Essentially yes. Good old fashioned twin-core mains cable.
 
 
 

Is the Live and Neutral wire from everyday appliances the same or is it too thick?
 
There isn't any issue with "too thick" apart from flexibility and how it looks.
 
Wire comes in different gauges, the Roger Russell article I've linked several times in this thread gives the maximum lengths for each cable gauge (the same table is also shown on the Wikipedia page for Speaker Cable). Basically what that table says is that for an average room with cable lengths of 3m any gauge will be okay, so using thin or thicker cable works just fine.
 
 
* reading the whole of the Roger Russell article is worth 10 minutes of anyone's time: http://www.roger-russell.com/wire/wire.htm 
 
 
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Direct Link To This Post Posted: May 15 2011 at 06:57
^ Funny, every instinct tells me to use "proper" cable.
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Direct Link To This Post Posted: May 15 2011 at 11:48
Originally posted by Sean Trane Sean Trane wrote:


 
do yourself a favour : Set your hi-fi stereo on mono then wire your left speaker with expensive specific speaker wire and the other with "lamp cable" (or the reverse if you wish) ... and then place yourself in front of each successively  ... start with the lamp-cable-wired speaker...
 
If you don't hear the difference (which is of course subjective), than by all means, go on and use the lamp cables...
 

Have you ever heard of confirmation bias?


If you set up an experiment like that, where you know which alternative is supposed to sound better, your brain will eventually make that happen for you - especially if, as in this case, there is no discernable difference between the signals. You will hear what you think you should hear.
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Direct Link To This Post Posted: May 15 2011 at 11:53
Originally posted by Snow Dog Snow Dog wrote:

^ Funny, every instinct tells me to use "proper" cable.

Humans don't have an innate instinct for setting up electrical circuits ... so what you refer to as "instinct" is actually a life's exposure to education and marketing. 
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Direct Link To This Post Posted: May 15 2011 at 11:59
Originally posted by Sean Trane Sean Trane wrote:

... Mike's vicious attacks ... Mike's angsts about my signature is that he doesn't realize that the second part is definitely more adressed to him than the first...

It's funny though that in another thread you talk about that first part and how *my* post was the first one in a long time that reminded you of it.

I fail to see how any of my recent posts here could possibly qualify as an "attack", let alone a "vicious" one. And I don't give a rat's bum about your signature - I simply pointed out that referencing to it in a reasonable discussion is a bad idea since it's just a roundabout way of saying "screw you, I'm right and I won't even tell you why". In internet lingo: epic fail.LOL


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Direct Link To This Post Posted: May 15 2011 at 12:34
Originally posted by Mr ProgFreak Mr ProgFreak wrote:

Originally posted by Snow Dog Snow Dog wrote:

^ Funny, every instinct tells me to use "proper" cable.

Humans don't have an innate instinct for setting up electrical circuits ... so what you refer to as "instinct" is actually a life's exposure to education and marketing. 

Well that's what I meant.Wink
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Direct Link To This Post Posted: May 15 2011 at 13:07
Ok but can you use a lamp as a speaker?
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Direct Link To This Post Posted: May 15 2011 at 14:01
That would not be a very lighted advice....

But seriously, this obsession about blind test: if blind test doesnt work, do you conclude that there's no difference between component (or accessory) A and component B? logically that would mean that there's no difference at all between any elements...Dean states that all cables sound the same, that you can plug almost as much devices as you want on the same plugs..etc...that you can put vibration devices below your components or not, it's end up the same. So, to all the people reading this thread, following this logic i'd conclude: you already have the best system in the world, does it sounds great?

So if you feel somehow frustrated, it's all in your mind...

About blind testing again: i explain that i compared my Imod/portable amp combo as a source plugged on my preamp against my drive/converter
combo playing the same album, switching from one to another in real time. If you listen only 5 seconds of each, it sounds very identical...but from 30 seconds, the fatigue due to the Imod/amp combo is much more important whereas you listen much longer to the drive/converter setup without being tired. So an instant comparison is not very revelant, especially in the digital domain.


Edited by oliverstoned - May 15 2011 at 14:06
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Direct Link To This Post Posted: May 15 2011 at 16:46
Originally posted by The T The T wrote:

Ok but can you use a lamp as a speaker?
Yes. They are called plasma arc speakers:
 
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Direct Link To This Post Posted: May 15 2011 at 17:28
^^ Oliver: "Blind" means that you are listening to two sources A and B and you don't know which is which. The point is that as long as you know that A is the source which you think sounds better, and B is the source which you thinks sounds worse, switching back and forth between the two is rather pointless. Have yourself blindfolded by another person and have that person switch back and forth between the sources - the person switches, you listen and say whether you think it's the good one or the bad one, the person notes that and switches randomly, then you repeat the process. That would begin to be a proper blind test.
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Direct Link To This Post Posted: May 15 2011 at 18:30
Originally posted by oliverstoned oliverstoned wrote:

That would not be a very lighted advice....
I refer my learned friend to my post above Tongue
Originally posted by oliverstoned oliverstoned wrote:


But seriously, this obsession about blind test: if blind test doesnt work, do you conclude that there's no difference between component (or accessory) A and component B? logically that would mean that there's no difference at all between any elements...Dean states that all cables sound the same, that you can plug almost as much devices as you want on the same plugs..etc...that you can put vibration devices below your components or not, it's end up the same. So, to all the people reading this thread, following this logic i'd conclude: you already have the best system in the world, does it sounds great?
Hmmm, so if the conclusion is false then every argument is also false? That reasoning is also false and no one here fell for it.
 
If a blind test fails to identify a difference between two components A and B then what other explanation could there be other than there is no difference between component A and component B? Using that to say there is therefore no difference between any components is a long way from being a logical conclusion - it's totally fallacious illogical conclusion.
 
"Dean states... that all cables sound the same"
No he doesn't. He's given evidence that heavier gauge cables are better for longer lengths between amp and speaker so he cannot have made that claim. If the cables have different resistance, inductance and/or capacitance then they will affect the signal, if that affect is in the audio bandwidth then you will hear it, if it is not then you will not. What I said was cable with similar resistance and capacitance will sound the same - I ignored inductance because that has minimal effect.
"Dean states ...that you can plug almost as much devices as you want on the same plugs"...
Originally posted by Dean Dean wrote:

Originally posted by oliverstoned oliverstoned wrote:

If i follow your theory, one can plug an infinity of power amps
on a same multiplug on the same line and there will never be no limitation ?

It doesn’t stand.

Of course you cannot plug an infinte number of power amps into on[e] multiplug, that's just being deliberately obtuse. Angry
http://www.progarchives.com/forum/forum_posts.asp?TID=64142&PID=4122574#4122574 Stern Smile
"Dean states...that you can put vibration devices below your components or not"...
Originally posted by Dean Dean wrote:

Spikes on speakers makes perfect sense as they are creators of mechanical vibration, on turntables absorption is better because they are converters of mechanical vibration. Vibration isolation of purely electrical equipment is pointless.
http://www.progarchives.com/forum/forum_posts.asp?TID=64142&PID=4126708#4126708 Stern Smile
Originally posted by oliverstoned oliverstoned wrote:


So if you feel somehow frustrated, it's all in your mind...
*comment ignored*
Originally posted by oliverstoned oliverstoned wrote:


About blind testing again: i explain that i compared my Imod/portable amp combo as a source plugged on my preamp against my drive/converter combo playing the same album, switching from one to another in real time. If you listen only 5 seconds of each, it sounds very identical...but from 30 seconds, the fatigue due to the Imod/amp combo is much more important whereas you listen much longer to the drive/converter setup without being tired. So an instant comparison is not very revelant, especially in the digital domain.
That's not a blind test. In that example you know which source is which. In a blind or double blind test you will not know which set-up you are hearing. Since you have A 50/50 chance of guessing the right set-up, the test is repeated a number of times to eliminate random chance.


Edited by Dean - May 15 2011 at 18:32
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Direct Link To This Post Posted: May 15 2011 at 19:08
Originally posted by Snow Dog Snow Dog wrote:

^ Funny, every instinct tells me to use "proper" cable.
Using "proper" cable feels right, as does using heavier cable, but there is no technical foundation for that. Overcoming the intuitive feeling that cable designed and sold as "speaker cable" must be better than poor old lamp cord that is 10, 20, 100 or even 1000 times less expensive is difficult, even when faced with all the technical data that says they are the same.
 
I freely admit to using 2.5mm² cable because it has a higher current rating and more strands than 1.5mm² for no other reason than it "feels right" even though my technical knowledge tells me that the thinner cable would work just fine and I'm confident that it would sound just fine too. I am also prone to such irrational judgements, just as I will use six screws to hold up a kitchen shelf when I know four will do the job just fine and I will buy a 100W amplifier even when I know a 50W amp is too loud for my sitting room and I drive a 150mph car when I know the national speed limit is 70mph.
 
The resistance of the cable does not affect how the system sounds, whether it is higher resistance (thin cable) or lower (thick cable) the sound is the same because the resistance is constant across the entire frequency band so the effect is also constant.
 
10 metres of 1.5mm cable has a resistance of 0.1ohms, 10 meters of 2.5mm cable has a resistance of 0.03ohms ... the thiner cable has 3 times the resistance, but it is not 3 times worse.
 
Send 8.98VRMS of signal into an 8ohm speaker through a 2.5mm cable and the power at the speaker is 10W. Change that to 1.5mm cable and the power at the speaker drops to 9.83W because the voltage drops to 8.87VRMS due to the increased resistance - this relates to a 0.075dB drop in volume (the threshold of human hearing is -3dB) - on a 50W amp you can compensate for that by turning the Volume control by 0.915° clockwise.
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Direct Link To This Post Posted: May 16 2011 at 02:46
Originally posted by The T The T wrote:

Ok but can you use a lamp as a speaker?
 
Of course you can....  It'll give correct service for a minimal price....
 
just don't expect a maximum sonic experience.... and if you're going to spend 1500.00 on a hi-fi.... it would be sad if you were not spending some 20.00 for speaker cables... common senseWink
 
Now of course if you have a all-in-one stereo (which does not qualify as hi-fi >> the components must be separate and be between 43 and 45 cm wide) >>> so if you have these mini or micro stereo.... it's senseless to spend money on specific cables...
 
 
 
--------------------
 
Snowie....
what one calls "lamp cable" is a two-wire system (generally 1.5² cross section) and has no ground cable cable.... these are to be use normally only for light fixtures in the modern house electricity wiring system, since the lights fixtures require no ground... Now of course your electrical appliances (like a portable DVD player or electric water boiler for tea) come with no ground connection, but these appliances are what's called "double isolated" electrically speaking.... you should see this next to the logo of EC regulation compliance marking >> you'll see a double square (one inside the other) >>> this means that the manufacturer built it according to the regulations
 
 
However most of the rest of the house electricity MUST be legally a three wire system (with that ground cable) since it goes to electrical outlets.... these wires have a 2.5³ cross-section and stand as much as 3500W usage.... (this means roughly 2é0V x 16A =3520W >>> your normal fuses in the fuseboards are of 16A >> if you have 20A fuses, you must use other cables.....
But by all means there is nothing stopping someone to use these 2.5² cross section wire with the ground cable being left unused 
 
>>> hey you can even choose to use the ground cable and not use one of the live cables (just in case you're allergic to the blue or brown colours... but not both   LOL)....
 
 
 


Edited by Sean Trane - May 16 2011 at 03:01
let's just stay above the moral melee
prefer the sink to the gutter
keep our sand-castle virtues
content to be a doer
as well as a thinker,
prefer lifting our pen
rather than un-sheath our sword
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Direct Link To This Post Posted: May 16 2011 at 03:00
Originally posted by Dean Dean wrote:

Originally posted by Sean Trane Sean Trane wrote:

Originally posted by Dean Dean wrote:

I ignored your inference that arguing with me was arguing with an idiot, I'm not sure I'm prepared to ignore your inference that I'm closed-minded and won't listen to a reasoned argument.
 
 
I don't tally scores Hugues, perhaps that's the way you conduct yourself, but I simply point out the science & electronics engineering as I know it and allow that to answer for me. I am completely unaware I am using bad faith in my arguments so that comes as a complete shock to me, please point out where I have inadvertently done this so I can avoid it in the future.
 
 
ps: I use mid price proprietary speaker cable on one system I own and 2.5mm² lamp cord on the other.
Hang on, here... I haven't called you that... and I'm still disccussing with you, which obviously implies that i don't think  it 
 
 I just pointed out when I stated my argument in the previous post (the use of other metals than copper), that obviously slipped by your attention (now let me interpret that as voluntary or involuntary, I'm not sure yet >> that's where I talked of bad faith)
 
 
And strangely enough, you put on "pending approval" the post where I answer to Mike's vicious attacks, not the one where I speak to you.... funny thing about Mike's angsts about my signature is that he doesn't realize that the second part is definitely more adressed to him than the first...
 
 
 
Now you're the Admin, you give me warning if you think I deserve one... I guess I have it coming to me... simply on accumulation grounds of successive incidents >> drops filling the bucket..
 
And if you do think my signature is part of the problem , please state so... I can always retrieve it.
In direct replies to me you have said: "but I won't go further down that aisle or else I'll use my signature" and "but you won't listen and it's all fallen on deaf ears" ... I am thick-skinned so personal comments generally bounce off me especially as my credentials as "an idiot" in this particular field are lacking though I do not deny it in other fields, however accusing me of not listening to your arguments is accusing me of being closed-minded and I that I find harder to ignore.
 
Your sig motto is amusing, but not when you refer to it during an argument.
 
As an Admin I do not moderate on threads I am active in - that would be disrespectful, disingenuous and an abuse of what little "power" I have - any argument/discussion I'm having here is as a forum member such as yourself and not as an Admin. However, I will put my hand up to hiding your last reply to Mike since it only fanned the flames not doused them - it was done to curtail that line of discourse between Mike and yourself.
 
But I didn't right??? since I'm still discussing with you.... That's how the signature works.... if I break unilaterally the dialogue abruptly... then it would come into effect... (clever, right??)....
 
That was a pure pun re listening to music experience, while stressing my point - in a live conversation, I'm sure you would've understood it as such and given me the service break point on that smash while laughing... you won't listen properly, since you've got deaf ears >> therefore I really don't see where the problem is...
 
 
Actually if you read back this thread.... I'm not the one that reffered to my signature first.... I re-intervened in the thread  (after staying away for some weeks/months) just after you guys made reference to it.... I just happened to "pop" by just after it.
 
 
 
let's just stay above the moral melee
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Direct Link To This Post Posted: May 16 2011 at 05:09
@Dean and Hugues. Thanks for all the info and clarification. I understand clearly now that lamp cable is what an elecltrician would use to wire the lighting system.

So normal cable for elevtrical goods would not be the same or useful for speakers?
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Direct Link To This Post Posted: May 16 2011 at 05:10
Originally posted by Dean Dean wrote:

Originally posted by oliverstoned oliverstoned wrote:


So if you feel somehow frustrated, it's all in your mind...
*comment ignored*


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Direct Link To This Post Posted: May 16 2011 at 05:45
Originally posted by Snow Dog Snow Dog wrote:

@Dean and Hugues. Thanks for all the info and clarification. I understand clearly now that lamp cable is what an elecltrician would use to wire the lighting system.
No. An electrician would use what is called "twin and earth" where the conductors are made of one piece of solid copper and the electrician uses that to wire from the fuse box to the light switch on the wall and then to the light pendant in the ceiling:
 
 
We are talking about this stuff, which has multi-strand copper and is used to wire a table lamp to the 13A plug:
 
Originally posted by Snow Dog Snow Dog wrote:

So normal cable for elevtrical goods would not be the same or useful for speakers?
yes it would - that is exactly what I'm talking about - cut the twin-flex off an old table lamp, or a food-processor or even an electric lawn mower, and use it to drive your speakers.


Edited by Dean - May 16 2011 at 05:47
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Direct Link To This Post Posted: May 16 2011 at 06:33
Of course they use one thick copper cable instead of strands....I knew that! Thanks Dean! Sometimes my brain......Head on wall.......and thanks for all the clarification.
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