Why does it'd go kaput at wavelengths smaller than the distance between your ears? That is inconsistent with the data. Heck, even Nordmark had 1.2 uSec at 12 kHz.
Why is it difficult to make bad cables? If a speaker cable is long enough and poorly matched to the load, the settling time variance can exceed audibility thresholds, just ask Ed...(even though I'm still mad at him for not doing the tests I requested he do...). 🙁
If an IC is poor, it is possible that all the signal return current goes through the power cable grounding loop instead of returning through the shield.
If a power cable is poor, it is possible that it couples power draw haversines into the input ground return loop.
Before I knew squat, it was very easy for me to make a bad cable....now, I cringe at poor stuff, and have fixed various systems such that cabling does not matter. Small systems like my audio stuff, larger stuff half mile in circumference.
John
stranded does make a difference. This is because the inter strand conductance is not as high as solid, so the eddies are not as strong. Your teacher was correct.
As an example, with superconducting cables, we will modify the strand to strand conductance to fit the application. In some apps, we rely on the conductance to spread the current uniformly, but in others we lower the conductance for high rate of change currents.
I am dismayed by your assumption that your excellent questions are "noisy input". They are not, but they are questions indicative of an excellent mindset.
Much as Df96's criticisms of me are based in well considered thoughts.
Both welcomed.
Cheers, John
Well, I agree... and I think they are too late for the lossy war. .... BW and storage is already barely an issue any more.... less so in the future. I dont need lossy except in a small portable maybe.... But for the non-portable. I would think it is a dead issue already. I dont see a 'better' lossy algor is going to take over the world any time soon. Margin or error? +/- zero.
-Richard
Interesting way to get even distribution....... what would you do to get even current distribution across a one inch thick flat aluminum plate that was 2 feet wide at the pulsed power source end (HV-High current, fast Tr) and 3-4 feet long tapered to a narrow one inch at the load end? The problem was current was mostly at the outside edges.
THx-RNMarsh
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Sequerra may know caps like nobody else but speaker building he can not.
Sequerra Met 7.7 Mk 6 review
This is a pathological flawed design or he knows more about psycho acoustics then i do.
The Step Response looks halve way decent though, but at what price ?
Sequerra Met 7.7 Mk 6 review
This is a pathological flawed design or he knows more about psycho acoustics then i do.
The Step Response looks halve way decent though, but at what price ?
Wire EDM
John
Ps. The most interesting part of your question are the parts you left out, on purpose perhaps? What the return current path is, what the dI/dt is, what the surrounding dielectric coefficient is, and what the surrounding element geometric construction is as well as what materials.
Your question is consistent with the typical simon7000 mis-direction setup...
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Oh, I was apologizing for having posted a couple of silly youtube links. I need to focus.
Thanks
I have the ancient originals, they sound fine to me (at $300 a pair) for what they are, I don't particularly care what anyone else thinks. JC has commented on them I don't think sad was his sentiment.
Who am I to say, top end Thiel and Cello electronics sent me running out of the room. NS-10's sent hands to ears almost immediately.
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I have a Behringer DEQ-2496 that has similar sensing mic/self eq function built in.
Same experience as you, below about 500Hz it got the eq all wrong, and with differing <500Hz results each run even with no change in the room including me or mic position.
The work around is that bands can be excluded from the self eq process, and indeed the manual recommends exclusion of 100Hz down...I ended up excluding 500Hz down.
Dan.
Did you listen for yourself? There are several pathologically flawed valve amplifiers that get raves.
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Does anybody know whats in them crossover wise...the article suggests full range bass and single series cap for the cone tweeter.....ie Bose 301/Sony/Panasonic/Teac etc etc except with woofer time alignment ring.
That blue thingy still looks real like the Synergistic doodads.
Dan.
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Mine are ancient circa 1976 there are no dodads just a wooden phase-plug. I don't know what the big deal is maybe they do something for chamber music or string quartets, back in the peace and love days I heard them in a vegetarian restaurant and was fascinated by the size/quality ratio.
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My MET7's are all 90's and above. The little tiny guys with the metal grills, I had in the 70's and 80's. They are a very different size.
That's what I still have, they are just my lab speakers they fit nicely anywhere on the bench.
Scott, please tell me these are not you A system speakers !.....Edit: I see that they are not, so for interests sake, what are your A system speakers ?.
I have lived with the likes of Bose 301 and they were probably pathologically wrong too, but they were fun sounding for the party nights 😉, but not in the race for 'proper' listening.....nowadays I wouldn't let them in over the door step.
Simple solution, just blue tack a bit of tissue paper over each of your ears
.Dan.
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what ever that means. The data you are curious about is not going to be told. Just wondering what idea you might come up with for possible solutions. The HF all concentrated at the edge.....is the point. Consider the return a large ground plane under the plate (insulated by thin insulator. How to normalize the current density across the plate conductor. Brain storm.. I am sure you can come up with a few ideas even with limited data given.
THx-RNMarsh
I have some clamp-on ferrites between my DAC and amp. They click and chirp, and occasionally even buzz. My DAC is on an ungrounded outlet and my amp is grounded. The amp itself is silent when this happens. I'm using 3 turns through one of these:
STAR-FIX LFS Snap Ferrite for suppression in the low frequency range | Ferrites For Cable Assembly
STAR-FIX LFS Snap Ferrite for suppression in the low frequency range | Ferrites For Cable Assembly
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