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Old 16th January 2013, 11:51 PM   #6011
qusp is offline qusp  Australia
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Quote:
Originally Posted by Julf View Post
Well, in that case something was definitely wrong with your set-up. Probably forcing your pre-amp into clipping.



"You hear what you believe". Have you ever heard of perceptual bias?

Once again: Pen & Teller: Water Waiter (the relevant part starts at 5:00)



Naah, you will just be accused of subjectivism and lack of scientific rigour...
yeah not that I disagree in general, but I do kinda object to this video being presented as a test that they actually did think they all tasted different. to me, particularly the restaurant section, its clear to me that they are making **** up to cover the fact that they couldnt taste any difference, but they didnt want to come across as unsophisticated, so they spouted nonsense. of course this is a factor in audio too, but it kinda dominates the result of the test IMO.
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Old 17th January 2013, 12:20 AM   #6012
qusp is offline qusp  Australia
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I did forget how awesome they are though HA, just watched the fengshui one too
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Old 17th January 2013, 05:56 AM   #6013
jlaakso is offline jlaakso  Finland
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Originally Posted by mr_push_pull View Post
your system is not resolving.
back to square one!
Is this ment to be a joke or sarcasm? Forgot your smilies? Do You even know what is in his rig? These kind of comments I would expect from a beginner trying to defend his own choices while buying one's first rig, blind. As I have read Your posts in the past, this shouldn't be the case though.
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Old 17th January 2013, 06:32 AM   #6014
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Originally Posted by jlaakso View Post
Is this ment to be a joke or sarcasm? Forgot your smilies? Do You even know what is in his rig? These kind of comments I would expect from a beginner trying to defend his own choices while buying one's first rig, blind. As I have read Your posts in the past, this shouldn't be the case though.
I've been known to forget smilies now and then.

it was a joke aimed at the fact that the objectivist vs subjectivist debate is circular almost by definition. each camp can always bring an argument that "resets" the discussion.
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Old 17th January 2013, 09:06 AM   #6015
Julf is offline Julf  Europe
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Originally Posted by qusp View Post
its clear to me that they are making **** up to cover the fact that they couldnt taste any difference, but they didnt want to come across as unsophisticated, so they spouted nonsense.
Agree.

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of course this is a factor in audio too
A pretty significant one, I would say...
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Old 17th January 2013, 09:07 AM   #6016
Julf is offline Julf  Europe
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I did forget how awesome they are though HA, just watched the fengshui one too
I wish they had done one on audiophiles...
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Old 17th January 2013, 09:24 AM   #6017
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Originally Posted by jlaakso View Post
Is this ment to be a joke or sarcasm?
Why not the two ?
I do not understand this debate with the gain modification of the Ncore.
What is the noise figure output of it in the both figures ? Do unmodified Ncore noisy enough to be heard on high efficiency speakers ? If not, there is no interest to change its gain, and a resistive attenuator right at the input will do the job perfect, and can provide a better isolation of RFI/EMI in the input line.
With the huge open loop gain of the Ncore, i doubt any change in its feedback loop can bring any practical change in the damping factor: il will be limited mainly by the loudspeakers wires.
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Old 17th January 2013, 09:32 AM   #6018
Julf is offline Julf  Europe
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Do unmodified Ncore noisy enough to be heard on high efficiency speakers ?
That is what some users have reported.

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a resistive attenuator right at the input will do the job perfect
Perfect? It will spoil teh impedance matching between source and amp, and probably introduce some noise.

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and can provide a better isolation of RFI/EMI in the input line.
How do resistors isolate RFI/EMI?

Quote:
With the huge open loop gain of the Ncore, i doubt any change in its feedback loop can bring any practical change in the damping factor: il will be limited mainly by the loudspeakers wires.
Probably not a big change in damping factor, but a small improvement in distortion and signal-to-noise...
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Old 17th January 2013, 09:47 AM   #6019
jlaakso is offline jlaakso  Finland
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@mr_push_pull: understood. As a moderator in our local hifi forum I have become very allergic to those kind of comments. Which fortunately was not the case here and I (sort of) overreacted.

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Originally Posted by Esperado View Post
Why not the two ?
If it were, it is BCP to mark it as one by adding smiley or to. Otherwise it can and will be interpreted as open assault and/or "reset" comment as mr_push_pull said.

For the rest of You guys, sorry for the offtopic.
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Old 17th January 2013, 10:04 AM   #6020
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That is what some users have reported.
Ok. Then, for them, and them only, it will bring an improvement. While, i wonder how an amp with 124dB of signal-noise ratio can be heard on a 100dB/w speaker: If will bring ~127db spl full power, so the noise will be 3db !!!! (remember a silent room noise is 30dBspl.
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Originally Posted by Julf View Post
Perfect? It will spoil teh impedance matching between source and amp, and probably introduce some noise.
How do resistors isolate RFI/EMI?
I doubt that, at this line level, the contribution of noise by a metal film low impedance attenuator brige is something to speak about.
Resistances does not islolate RFI, but we are talking of an 'attenuator', right ? And in the other sens, it brings an added isolation for the feedback loop of the previous preamp, if any.
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