John Curl's Blowtorch preamplifier

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SY said:
Here's the procedure I gave Joshua, with the only redaction being a forbidden word on the forum:


SY
That's a good test procedure, but I think it's quite important that the one that is in control of the cables and swapping them don't know what cables he is dealing with, and is not importing or selling cables.
In other words he or she doesn’t make business in the test result.

Stinius
 
We all do have one thing in common, a passion for sound and music. Some are more interested in the former and some the latter, to each their own.

If one concentrates too much on the sound and less on the performance, the gear will become a 'hindrance' to musical enjoyment instead of 'the means'. This because you will always find something to criticise about the sound no matter what you do or how much you spend, it is the nature of things. Two camps exist with the same goal, perfect sound. I just try to "curb my enthusiasm."
 
stinius said:


SY
That's a good test procedure, but I think it's quite important that the one that is in control of the cables and swapping them don't know what cables he is dealing with, and is not importing or selling cables.
In other words he or she doesn’t make business in the test result.

Stinius

As long as the test subject and the experimenter are isolated, that won't really matter. If the experimenter had a financial or emotional stake in the outcome, I would add in two further controls:

1. A third party holds the key sheet, and the subject's test sheet is given to that party.

2. The experimenter would not have access to any part of the setup where levels could be altered.
 
SY said:


If the experimenter had a financial or emotional stake in the outcome, I would add in two further controls:

1. A third party holds the key sheet, and the subject's test sheet is given to that party.

2. The experimenter would not have access to any part of the setup where levels could be altered.

Yes I agree, that's my point.

Stinius
 
fredex said:
We all do have one thing in common, a passion for sound and music. Some are more interested in the former and some the latter, to each their own.

If one concentrates too much on the sound and less on the performance, the gear will become a 'hindrance' to musical enjoyment instead of 'the means'. This because you will always find something to criticise about the sound no matter what you do or how much you spend, it is the nature of things. Two camps exist with the same goal, perfect sound. I just try to "curb my enthusiasm."


Yes I agree

Personally I enjoy first of all the music and the performance,
I’m also very interested in electronics and sound.
Maybe that’s why I became a sound engineer.

I’m both electrical engineer and electronics engineer as well as I have an economics degree.
I toured as sound engineer for about 25 years (started early); I stopped touring when I got kids. It’s not easy to be on tour 350 days per year with wife and kids back home.

I now own a company in a completely different business, but I am still fascinated by sound and electronics that’s why I’m here at this forum.

Stinius
 
stinius said:



I’m both electrical engineer and electronics engineer as well as I have an economics degree.
I toured as sound engineer for about 25 years (started early); I stopped touring when I got kids. It’s not easy to be on tour 350 days per year with wife and kids back home.


In the light of you impressive background – how do you choose cables and other components for your setup, or may be you don't care and don't choose?
 
syn08 said:


Don't think so, but I'll let you for now fight this lost cause. Though, a quote from the Internet wisdom:


Some things to keep in mind about trolls:

1. Even if you find it amusing, even if you think the troll is an *******, you perpetuate the problem by replying to their post.

2. The troll continues to come back and cause trouble because every person who has ever replied to a troll post, no matter how well-meaning they were in replying to said troll post, FEEDS THE TROLL. If all of us were to simply IGNORE the troll they would go away -- but see, by giving the troll attention, they continue to come back, again and again and again. Therefore,

3. Feeding the troll is -essentially- as bad as *being* a troll. As soon as you feed the troll, knowing full well how bad that is, you become part of the problem. Be a part of the solution and IGNORE TROLLS.

4. This should be obvious, but when somebody feeds a troll, and then you jump in and reply to that feeding -- guess what -- you've now just fed the troll *again*. Even if you don't quote the troll or reply to anything they've said, you're still feeding them.


A good point

So how is the weather in Canada, will it be a white christmas?

Stinius
 
Joshua_G, you won't get a certain significant group here to listen for themselves for the differences, or to believe that you hear anything important. I believe you, because I share the same experiences. I wish it were easier to dismiss wire and cable, but then I am in the serious business of making competitively successful audio equipment. Trust me, wire makes a difference to me. Still, with the detractors of this opinion in full force on this thread at the moment, it is best not to keep 'shaking their cage'.
 
John Curl
I can accept that you and others hear a difference but I also know that others don't so I can see that if you allow for cable sound in your equipment you will satisfy those who hear a difference without upsetting those who don't. You are in a win win situation.
 
Thank you, John.

What amuse me are those who don't hear differences that argue with those who hear.
They cannot possibly know whether others hear differences or not, or whether the heard differences are real or imagined, for they don't have the relevant experience – so they outsmart, or think they do. When asked about their own experience, they resort to name calling.
 
SY,

the procedure you´ve send to Joshua_G. will most likely require an extended training period to get useful results.

It is known, that (at least) in audio blind test a discrimination test protocol, which needs nill tests (means faked switching) will produce a lot of false answers for these nill tests. (as posted earlier, see for example Nousaines on this matter).

It would be better to choose a pure preference protocol with identification as a correct answer or by choosing a describing word pair for the DUTs in an initial listening/training period.

Wishes
 
Jakob2 said:
SY,

the procedure you´ve send to Joshua_G. will most likely require an extended training period to get useful results.

It is known, that (at least) in audio blind test a discrimination test protocol, which needs nill tests (means faked switching) will produce a lot of false answers for these nill tests. (as posted earlier, see for example Nousaines on this matter).

It would be better to choose a pure preference protocol with identification as a correct answer or by choosing a describing word pair for the DUTs in an initial listening/training period.

Wishes


Do you see any flaws in my procedure?
 
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