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Old 20th February 2013, 08:19 PM   #6421
mangew is offline mangew  Sweden
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One more question before i order anything for a ncore build.

Suggestions where to order aluminium enclosures with shipping worldwide appropriate for these modules?
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Old 20th February 2013, 10:19 PM   #6422
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Originally Posted by Julf View Post
Maybe not more factual, but definitely more objective and reproducible.



Sure - point taken. Just hoping we could finally have some actual facts instead of opinions...
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Originally Posted by Julf View Post
Fair enough, but in that case I think it would be fair to qualify any recommendations with "this is based on personal, subjective and unverified impressions. Your mileage might vary".
I wonder what percent of professional equipment reviews are performed under "level-matched, controlled dual-blind ABX comparisons?" I will venture a guess at something like 0.01%. The only professional reviews that I know of that come close is UHF magazine. Amateur reviews are virtually nil. I assume that virtually EVERY review is just a "personal, subjective and unverified" opinion of what the reviewer heard in that system on that day.

Even if it was a level-matched, controlled dual-blind ABX comparison the conclusion would only apply to that system and possibly not at all to my system (my mileage might vary). It goes without saying.
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Old 20th February 2013, 10:25 PM   #6423
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Originally Posted by mangew View Post
One more question before i order anything for a ncore build.

Suggestions where to order aluminium enclosures with shipping worldwide appropriate for these modules?
I know it is time consuming to search through this thread but there have been several recommendations. You might get lucky though and get a quick answer. Otherwise, go searching.
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Old 21st February 2013, 12:41 AM   #6424
gnomon is offline gnomon  Canada
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Originally Posted by mangew View Post
One more question before i order anything for a ncore build.

Suggestions where to order aluminium enclosures with shipping worldwide appropriate for these modules?
There are many other solutions, of course, but those might get you started.
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Old 21st February 2013, 12:43 AM   #6425
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Originally Posted by mike_mcf View Post
I wonder what percent of professional equipment reviews are performed under "level-matched, controlled dual-blind ABX comparisons?" I will venture a guess at something like 0.01%.
*********
Almost no equipment reviews (either in print or on the InterWeb) are capable of reviewing a component without first knowing:
a] Brand
b] Price point
c] Technology
d] Visual impression (especially true with speakers or turntables)
e] Consensus of other reviewer's and golden ear's.
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Old 21st February 2013, 04:23 AM   #6426
mangew is offline mangew  Sweden
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There are many other solutions, of course, but those might get you started.
Thanks, will look them up. When i first started to look i did find a closure with a power on and blue circle round button but do not fin them anymore...

WHat size is appropriate to mono´s/power amp?
WHat height recommended? Do the need holes in closure to be vented?
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Old 21st February 2013, 06:35 AM   #6427
Julf is offline Julf  Europe
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Originally Posted by mike_mcf View Post
I wonder what percent of professional equipment reviews are performed under "level-matched, controlled dual-blind ABX comparisons?" I will venture a guess at something like 0.01%. The only professional reviews that I know of that come close is UHF magazine. Amateur reviews are virtually nil. I assume that virtually EVERY review is just a "personal, subjective and unverified" opinion of what the reviewer heard in that system on that day.
Let's not even start to discuss the level of the "professional" audiophile press

But yes, what you see in most places is just that, reviews. Sometimes with measurements, sometimes without. A review is a different thing from comparing if a certain change or difference is better or worse, or even audible at all.

Quote:
Even if it was a level-matched, controlled dual-blind ABX comparison the conclusion would only apply to that system and possibly not at all to my system (my mileage might vary). It goes without saying.
Sure - but a controlled dual-blind ABX is not really a tool to evaluate your whole system, but instead means to more reliably answering questions like "does a nCore amp sound better when bridged", "are there audible differences between lossless file formats" or for comparing, let's say, linear vs. SMPS power supplies.
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Old 21st February 2013, 09:10 AM   #6428
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Originally Posted by Julf View Post
Let's not even start to discuss the level of the "professional" audiophile press

But yes, what you see in most places is just that, reviews. Sometimes with measurements, sometimes without. A review is a different thing from comparing if a certain change or difference is better or worse, or even audible at all.



Sure - but a controlled dual-blind ABX is not really a tool to evaluate your whole system, but instead means to more reliably answering questions like "does a nCore amp sound better when bridged", "are there audible differences between lossless file formats" or for comparing, let's say, linear vs. SMPS power supplies.
As always, unique system setup and test conditions as well as "ears" means no generalized truth or any other "objective" fact -other than stating exactly what happened and under what circumstances.

That is scientific method; not claiming anything outside what happened.

Anything else is interpretation and speculation -although that is also seen more than often by scientists and that is why we have double blind peer review processes to test reliability of claims.

Julf your question should instead be: "any double blind peer reviewed double blind level-matched ABX test?" -and of course remember to ask about the specific test conditions...

I think that ABX tests can be good for detecting certain types of differences, but not all. Remember that tests-setups are what produces test-results, not just what is tested
- My question is whether that type of test reveals what is really of concern or whether it just sidetracks things in a doomed attempt to reach "objectivity" on something that might not be able to be reduced to "objective truths"?...
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Old 21st February 2013, 09:21 AM   #6429
Julf is offline Julf  Europe
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I think that ABX tests can be good for detecting certain types of differences, but not all.
But as I keep saying, it is a bit like democracy - a flawed idea, but better than the alternatives.

So how would you ensure the reports of audible differences aren't caused by expectation bias and other psycho-perceptual causes (assuming trivial technical things like level matching have been taken care of)?

Quote:
My question is whether that type of test reveals what is really of concern or whether it just sidetracks things in a doomed attempt to reach "objectivity" on something that might not be able to be reduced to "objective truths"?...
Well, yes, and that leads into the eternal question of "hi-fi" vs. "audiophile" - do you want your system to reproduce the original signal as accurately as possible or do you want it to sound "good"? (And yes, I acknowledge that what is "original" is a hard question). A debate we won't be able to resolve.
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Old 21st February 2013, 03:00 PM   #6430
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Originally Posted by Juhleren View Post
I think that ABX tests can be good for detecting certain types of differences, but not all.
I'm exhausted by those audiophiles non-senses, this confusion between engineering and instrument making, brain and hearing etc... Trying to find mysterious evils and believing in magic, even against the most obvious laws of physics. Measurements means nothing... blind tests are wrong...
An hifi equipment is supposed to be 'transparent'. If something is not *obvious* in an ABX test, you can neglect-it: who care what *you* produce in your imagination ?
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