John Curl's Blowtorch preamplifier part II

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Actually, PMA, Steve Eddy's 'problem' shows something important about diy and hi end audio construction, in general.
Most here are used to automated mass production or at least volume production in an environment of low wages and high hazard potential. This is what sets their presumption as to what SOMETHING SHOULD COST. After all, if you can get a quality FM tuner for less than $100 from Sony, why should you have to pay more than $100 for a preamp, or maybe twice as much for a power amp?
In fact, there are examples, of good looking designs in this price range. How they 'sound' can be debated, but as SY has told you, without a double blind test, how can you trust your opinion as to whether it sounds good or bad? It could just be your imagination, and you should 'get over' your imagination and just use what seems useful and cost effective.
Now here is Steve Eddy making a cable for fun and 'profit'. Yes, Steve has fun trying to make an 'interesting' cable, but it could easily be replaced by 'throwaway' audio cords that we get with our audio purchases. SE fully admits this, EXCEPT for the feel and odor of his exotic, hand made cables, which, being so difficult to fabricate, are available from him for $300/one-half meter or so, a common length. He would like to reduce the cost, but it is virtually impossible, as he has so much trouble making them.
This is also true with hi end. My present business partner now has a CTC Blowtorch that we made for him from a REJECTED chassis (original cost about $2500 in its unfinished state) that we scrounged from the late Bob Crump's inventory. You see, WE could use it, but WE could not SELL it to anyone else. It had been dropped and one edge was damaged. This is the price of perfection.
 
The ACTUAL weighting is MUCH steeper. 7th harmonic being DEATH! (or its equivalent)
It is more like 1/ (N-1)/2! Try that series and weep! ref. Bob Stuart, W.W. early 1970's

I'm not crying. I have almost nothing past the 5th. :)
But I also think that odd-orders should be weighted heavier, or even ones weighted lighter, whatever one prefers.

I couldnt avoid thinking at a power amp that i saw once which had a measurable (only with a proper notch filter) 21st and 25th harmonic! And then they say "transistor sound".
I bet.
 
Wooden Eichmanns?

No. The RCA's are Switchcraft 3502AAU's and the barrels are a paper/phenolic laminate that goes by the trade name Garolite (XX grade in this case). It's basically a form of Bakelite.

Ah yes, I've seen bakelite used once or twice. I wanted to use wood, but didnt find a willing "carpenter". I saw it done to replace the eichmanns, which looks similar to your connectors.
I dropped that and stayed with plastic. Luckily I dont have time to play with cable ATM. :)
 
Originally Posted by john curl
It has been covered here on this thread, but it IS controversial, and this is the wrong place to show more. My colleague, Ron Quan, just presented a paper on this at the AES convention in SF. A copy of that paper would be a good start.
John you want me to send you a copy?

jan didden

Actually, John suggested me to read it :)
 
Actually, PMA, Steve Eddy's 'problem' shows something important about diy and hi end audio construction, in general.

Er, exactly what "problem" is that, John?

How they 'sound' can be debated, but as SY has told you, without a double blind test, how can you trust your opinion as to whether it sounds good or bad? It could just be your imagination, and you should 'get over' your imagination and just use what seems useful and cost effective.

SY has said absolutely no such thing.

Your constantly misrepresenting what others have said wore thin long ago.

And since you're under moderation, I would strongly recommend that the moderators don't allow your making any statements about what someone else has said unless you include a direct quote from that person.

Now here is Steve Eddy making a cable for fun and 'profit'. Yes, Steve has fun trying to make an 'interesting' cable, but it could easily be replaced by 'throwaway' audio cords that we get with our audio purchases. SE fully admits this EXCEPT for the feel and odor of his exotic, hand made cables...

And here you go and do it yet again in the same post.

Quote me, John. If you can't, then don't post. Simple as that.

se
 
Ah yes, I've seen bakelite used once or twice.

Yeah. Though traditional Bakelite uses powdered wood rather than paper.

I wanted to use wood, but didnt find a willing "carpenter".

What you need to look for is really a "machinist" that's willing to work with wood.

I dropped that and stayed with plastic. Luckily I dont have time to play with cable ATM. :)

:(

se
 
Sorry Steve, we will try to keep from breaking any rules in future. That goes for you too, Jan! Oh, and quote without comment on SE's cable selection:
"If they sound better to me for no other reason than I also like how the look or feel or smell, that's perfectly fine to me. It doesn't change the pleasure I get from them which is the only thing that really matters to me."
 
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Hi John,
It's not about breaking rules. If you can't properly quote, it looks bad on you. Especially if you are using the quote to make a negative comment or assessment about another person or product.

So, for your own sake, try to be accurate when quoting or paraphrasing another member's posts.

-Chris
 
I WILL QUOTE next time. Did I REALLY get his meaning wrong, just by using my own words? I personally don't think so, however, I will 'walk the line' IF the rest of you will. Take care, with what you impugn me with as well, everyone. Casual comments about me and my opinions will be brought up here in future, IF they are not accurate to MY personal appraisal.
 
Sorry Steve, we will try to keep from breaking any rules in future. That goes for you too, Jan! Oh, and quote without comment on SE's cable selection:
"If they sound better to me for no other reason than I also like how the look or feel or smell, that's perfectly fine to me. It doesn't change the pleasure I get from them which is the only thing that really matters to me."

And what's the first word in that sentence you quote, John?

se
 
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