The point here is.. what does it mean "sound good"?
You can fully qualify a speaker sound just by its electrical/acustical measurements, but you cannot qualify it by its relationship neither with the environment nor with the human hearing proccess.
It makes it possible to "sound good" for someone and to "sound bad" for the others. Anyway, electrical/acustical parameters are prevalent, and a high distortion in a so-so driver 😀 will probably make it sound worst than a pricey one with a significantly lower distortion.... at least until the hearing system can do its job.
Which is why preference testing is appropriate for product development but not so good for accuracy. Seems to me the industry is at stage one:
Stage 1 - reproduced sound has maximum appeal to the widest audience
Stage 2 - real and reproduced sound different but a listener has a hard time picking which is 'live'
Stage 3 - reproduced sounds like real
Was it a Sonic Screwdriver?
I really wish you hadn't posted that. Now the secret is out. That guy should have locked the door while doing the power screw adjustments. To keep the competitive advantage we'll have to switch to phillips (cross) screws now. 🙁
(Canadians will claim the sonic advantages of Roberts screws)
😀 😀
I'm currently building a two way loudspeaker, and while doing "middle field" 😉 measurements I got FR "anomaly" not present in measurements taken one week ago. I just have to untight the screws from the DX25 tweeter to get the right FR again 😕.
I wasn't able to hear any difference at all... but I didn't turn the screws to horizontal position... 😱 😱 😀
That's Robertson.
In this context, I'm sure you'll find pro-Robertson (sounds better than Philips or bladed) and anti-Robertson (square hole shape causes standing waves).
from eletrical POV "product" makes sense, but not sure if worth the additional trouble
-> that fatassed xformer will reduce eficiency(cosine phi,..), and make el.meter spin even if audio gear is off
the isolation xformer with center tap would be same effect and cheaper 🙂
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regarding shorted filter
An externally hosted image should be here but it was not working when we last tested it.
TN-C (old 2wire instalations TN-C) vs TN-S
The last two sound like Geoff Kait. I wonder if there's a delayed choice experiment for CD tweaks?
Ah, thanks. You see how ignorant we Yanks are about the mysteries North of the Border? It's surprising we can even turn over our own records.
Does rhodium plating help the screws any? Or would that be latitude specific?
I've found that screws of any type that have been aged exactly 1.618 years on the moose driven sleigh I commute in sound best for audio.
I have 3 different experiences when good drivers (upper range ones) thrown together sounded very nice in almost all respects while uber-tuned x-overs with mediocre drivers sounded mediocre.
one other time I switched the tweeters on two speakers (practically identical T/S parameters and SPL responses). it was obvious to my ears that the 'bad' tweeter transported with it the negative traits of the sound. on both speakers it made the cymbals sound vague and plasticky. a rather subtle but nevertheless clear difference that seemed to make music irritating.
IMO, the openness, clarity, transient impact are intrinsic characteristics of the drivers, the traits carried by the xover are subtle in comparison.
PS: looking at this thread I can only think "I created a monster!" LOL
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The great Screw debate
So the slot must be at a 90 degree angle to the blades. What if they have a 20 amp 120 volt plug where the slot are at right angles ? Then also would it not mater if it was ferrous or non ferrous screw . This open a great hole for selling the proper type of screw for that application . There a pun in there some where.
That depends if it is also slotted as well. The Phillip head ones are self canceling . Now what about the allen headed ones?
indeed, I use them too (actually I call them hex screws), those security hex and securuty torx though, I have no idea how to deal with them.
Seems this guy beat CERN to the discovery of the HIggs Boson by several years
😀
Audio Acccessories - Teleportation Tweak, Long Distance Telephone
Subjectivity BS Of A Different Kind.....
There is often talk around here about the invalidity of subjective findings.
Wine among other subjects is one seemingly wholly based on subjective findings, and in the standard press there are absolutely no objective measurements to back up professional wine judge's opinions.....opinions that are hopelessly unrepeatable and at the mercy of all kinds of external factors, so the conclusion is that wine judges are full of BS. Link here - wine-tasting-is-bs-here's-why
Dan.
There is often talk around here about the invalidity of subjective findings.
Wine among other subjects is one seemingly wholly based on subjective findings, and in the standard press there are absolutely no objective measurements to back up professional wine judge's opinions.....opinions that are hopelessly unrepeatable and at the mercy of all kinds of external factors, so the conclusion is that wine judges are full of BS. Link here - wine-tasting-is-bs-here's-why
Dan.
Dan, you are confusing reviewer's OPINIONS and blind comparative judgments.
That article could apply equally to subjective audio reviews. Mostly BS.
However, wine judges being able to identify a wine BLIND, ie not seeing the (or any) bottle is similar to the "can you tell the difference?" goal of blind audio testing. It is valid.
That article could apply equally to subjective audio reviews. Mostly BS.
However, wine judges being able to identify a wine BLIND, ie not seeing the (or any) bottle is similar to the "can you tell the difference?" goal of blind audio testing. It is valid.
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