Just record the output of your gear, feeding-it with:
- Nothing
- Pink noise
- 1000Hz.
and hit-it (with each sound sample) with a hammer*.
If you can hear something, listening to your recording, it will be time to find the bad contact or the defective component !!!!
Microphonic effect in a solid state assembly probably exists, but at a level you will never, never, never hear.
Please, do not propagate all the snake oil vendors b...s.. without verification of their claims. You will save your money not buying miraculous cones, cable lifters etc.
Dimitri has already responded to this kind of #¤$@& with his usual humor:
John Curl's Blowtorch preamplifier part III
*Don't do this on your turntable ;-)
Quoted for future reference.
Very well put!
As I've pointed out, you are in denial. As I've already asked, you can prove me wrong by pointing out the specifics with quotes why it's not an evidence to what I wrote on June 9th.
Not holding my breath...
If a troll, got trolled another troll, while he was trolling.......how much wood could the woodchuck then chuck?
😛
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Don't play dumb, you know exactly what I mean.
Nobody is contributing a damn useful thing in this thread/topic. It is exactly what it looks like, a pub chat.
Thing is, some of the characters around, you included, have zero DIY Audio interest in anything but this pub chat.
Let me address your theories: (1) He who has learnt to listen for small differences has screw up his pleasure. (2) He therefore tends to be bitter towards happy people (3) The bitterness can be serious, starting from spoiling for others to killing them in cold blood.
Theory 1, correct. Audio or not, no difference. Food is the close one. If with sound I have to regularly pay attention to the location of PA speakers because if i sit in front of it in ceremonies and cannot move, I will be screwed up 😡 With food, I'm not happy either. Today, i had my breakfast/lunch at 16:00 in the afternoon. At 10:00 i felt hungry but i didn't like the food at home. At 13:00 I decided to eat 'soto' across the street. After some 'surveys' I sat in one of the resto. Confused with the food, I ordered a drink then went home. Wife: "Have you had your lunch?" Me: "Not yet" Wife: "Why you went so long?" Me: quiet.
At 15:00 I felt so hungry, went out with families to find food. Drove around 20 kms to find new place for food. Stopped at my favorite resto but my favorite food was not ready. Just before arrived home we stopped at a mall across the street, sat in my favorite resto there, ordered my favorite food. Geez, I tend to eat/drink the same menu in the same resto, again and again. 😕
Theory 2/3, correct but has nothing to do with audio. This depends on the person's psychology. The worst thing i have done is to ask people (close ones) to turn down the volume of sound system, TV, including voices.
johnego, what is your audiogram number? You've claimed to have good hearing. Has it been confirmed by audiologist?
I said high gain stages and I am referring to older gear and older construction methods, better components and construction methods are the normal today. Heatsinks sounding according to output currents is real and can be surprisingly loud particularly with any momentary clipping. This heatsink fin acoustic sound is a bit like stylus acoustic sound like I said, something to be aware of as sometimes colouration in the background.
I have no association with so called Snake Oil vendors as you put it, my statements are through experience as long as yours and through thousands of items over the repairs benches. I think you grossly misunderstand me and this has turned to attacks from you T more than once, I thought of you as better than that kind of behaviour towards others, especially in light of your protest of perceived attack toward you and your promise of retirement from this very forum.
And who is spending money on cones or lifters etc ???....this is where you are wrong about me, my system looks as 'standard' as can be because it is an exercise in what performance gains can be achieved in economical consumer grade audio equipment and by economical means. The subjective performance gains achieved are quite outstanding by paying attention to load electrical conditions (speaker/cable impedance compensation), paying attention to cable dielectrics/directions and application of my filter goop in the right places. Dimitri's point of cable contacts failure is nothing new (it is good to see graphs thank you Dimitri), that's why I use contact oil treatment on all connections. A whole bunch around here need some kind of 'chill pill', all this automatic arguing and verbal assault is destroying this thread, those who keep carping please just drop the ego trips and cut out the willy waving.
Dan.
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You mean 'an empty vessel makes the most din'.
Syn08, I looked at some of your designs on your website and I noticed carbon composition resistors on one of your boards, why did you specify these ?.
Edit: None for sale as yet, if you were local I would say come on around for a new experience ;-)
Dan.
Yes, pics or it didn't happen 😉.
Dan.
No, never checked my hearing with audiologist. Good hearing, in my own definition, not just mean an ability to hear wider frequency bandwidth. I know that i have limited bandwidth but I'm sure that in my age my hearing should be good. Why? I have heard test tones. There's possibility that i heard the harmonics, i know. Long time ago (I was above 40) I demonstrated to a lot of younger people the Physics of sound. With tone generator I demonstrated frequency swap to show the audience' hearing threshold. I wanted the audience to raise their hands as soon as they heard the HF. To my surprise, the last person who still raised hand was an oldest lady in the room (I think above 40). She was an Indian so may be she did meditation a lot 😀 I didn't find the young girls were special compared to me, except that they hear it louder than i do. Without experience I might not be able to 'hear/detect' very high frequency either.
My wife is a lot younger than i am but i didn't find her hearing is better too. But my youngest son is definitely better, a lot. One day he said "Dad, please turn off your thing. It hurts!" He sat close to a table fan and one meter from the fan was a loud TV. One and a half meter from the TV was a speaker. Confused, I turned off the fan and TV and asked the boy to come and show me where the sound came from. He got up, walked towards the speaker and pointed his finger to the speaker! WTF! I thought my amp was silent but how come there was HF sound there 😕 I didn't hear anything and didn't even know if the amp was not turned off. The fan and TV were way louder and closer to him (the speaker was next to me).
I should have tried that with my customers.
A real conversation with a military contractor having an issue with one of our parts.
Them - "Are you committing to finding the problem and submitting a plan to rectify it?"
Me - "Yes"
Them - "Sir, is that an affirmative?"
Me - "Yes, sir"
mmerrill99,
I can make a top quality loudspeaker cable at £1 per foot. You can sell a loudspeaker cable at £100 per foot. Perhaps it is too much to ask, but as I am one of the little people who enjoys music merely for the sake of it, could you please explain as to where the other £99 fits in to the equation, and would I ever be able to hear the difference? 😕
ToS
I can make a top quality loudspeaker cable at £1 per foot. You can sell a loudspeaker cable at £100 per foot. Perhaps it is too much to ask, but as I am one of the little people who enjoys music merely for the sake of it, could you please explain as to where the other £99 fits in to the equation, and would I ever be able to hear the difference? 😕
ToS
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Yes, a $1000 power cable certainly helps.
PS Audio - PerfectWave AC12 Power Cable
If you would have the slightest clue about EE, you could decode what is clearly said: for their power surge capability.
mmerrill99,
You have spoken at considerable length about DBT, both sighted and unsighted, plus Foobar ABX. If I was trained up in all of these procedures, would I be able to hear the quantifiable difference between your cable and mine? Because in terms of value for money, the other £99 must make for an incredible sonic difference between the two.
Admittedly, I do find the disparity somewhat confusing. 😕
ToS
Ah, I understand now - your mistake is that you still think I'm Merrill Audio
Don't listen to half of what you hear from the core of posters that attack the poster rather than debate the post - they will try anything to win the the debate
No, i have trained people to listen to things that i could hear in ABX. Very little improvement when there was any.
Think like a billionaire! It's not that confusing. If failed, think like a Psychiatrist.
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If I were a billionaire you know I’d have a set of siltech emperor crown cables....maybe even a spare set in case the pet snow leopard chewed them in two. 😛
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