Nearly all manufacturers do not advertise/exhibit their product measurements? Why?


After my Audio Science Review review forum, it became apparent that nearly the only way one can determine the measurements of an audio product is wait for a review on line or in a publication.  Most equipment is never reviewed or is given a subjective analysis rather than a measurement oriented review.  One would think that manufacturers used tests and measurements to design and construct their products. 

Manufacturers routinely give the performance characteristics of their products as Specifications.  Those are not test measurements.

I searched the Revel speaker site for measurements of any of their speakers and could not find any.  Revels are universally lauded for their exceptional reviewed measurements.  Lack of published manufacturer measurements is true for nearly every speaker manufacturer I've searched for on line, perhaps several hundred.   Same is true for amps, pre-amps, DACs, transports, turntables, well you get the picture.  Do they have something to hide?   I doubt the good quality products have anything to hide but poor quality products do.  

ASR prides itself in providing "true" measurements that will aid in purchase decisions.   Why don't the manufacturers provide these measurements so that reviewers can test if they are truthful or not?

Then there are the cables and tweaks for which I suspect that there are inadequate tests available to measure sonically perceived differences but which objectivists believe don't exist or are "snake oil."  

Well, please chime in if you have some illuminating thoughts on the subject.   

I would have loved to see manufacturers measurements on my equipment and especially those that I rejected.  

fleschler

@amir_asr , I followed your instructions about having a friend switch cables to the letter, I have no idea what you are talking about when you say single trial, you said guess which cable is better 8 out of 10 times, I did that, duh.

BTW, it is not "we" talking about blind tests. When it came to the topic of cables I posted specs of the cables listed in my profile which is exactly the topic of this thread, a manufacturer listing measurements. I never said I "blind tested" them.

As for proper instrumentation you are joking right? You still haven’t posted anything about your system.

Still waiting....🙄

Audiogon Forum 1- ASR 00000000

So, all this venom being spit at Amir is because of what??? Oh, I remember how it all started, @fleschler was banned from ASR and his feelings got hurt. Insulted his subjective opinion wasn't taken seriously on a measurement-oriented objectivist site he started a thread here. Is this the 3rd or 4th now? So many nasty comments. Is it any wonder why the audiophile community at large is bleeding members?

@melvinjames +1

Not unlike missing a shot at one end and then running down court and committing a foul at the other end out of frustration.

If a manufacturer thinks their customers care about measurements, they are more likely to publish meaningful ones. Otherwise, they can do whatever they want. Pretty sure these things are not regulated? Why? Because most listeners could care less about measurements and those that do will conduct their own business appropriately.

Personally, I am a technical guy by profession…an engineer. I am a fan of good quality useful measurements. I create and use them all them all the time to help make informed decisions. It’s not something a lot of people are very good at. Most consumers only care about the most fundamental measurements to determine if a product will work to meet the intended use. The things that determine if a product complies with some common standard, for example. Most have no clue even about that and need someone to help.

My opinion regarding measurements and good sound: Good measurements applied well = good sound faster. It takes some smarts and experience to be able to navigate the world of technical measurements properly. Measurements are a means to an end. The end may or may not measure well, but still might be determined to sound good because that is a subjective determination. I can’t spec out what sounds good to me but I know it when I hear it and measurements probably played some role along the way. Most likely.

My recommendation: avoid extreme positions like measurements don’t matter or if it does not measure well it can’t sound good. Good sound is a subjection determination. Learn to use  measurements wisely if you are inclined to even care about such things. 

Recidivism.

@mitch2 @melvinjames @amir_asr 

Is this the 3rd or 4th now? So many nasty comments. Is it any wonder why the audiophile community at large is bleeding members?

@mitch2 , the system in your profile looks great, "he shoots, he scores" would apply here, no foul.

Thanks for posting it.

@dustyb123 

If you listened to 2 amps and liked one better but found out the specs on the one you didn't like were better would it change your decision?

It must not as long as a) you only used your ears and repeated the test a few times to make sure you are right and b) your listening tests were comprehensive enough to cover limitations of the amp.  For example, if you listen at low volumes, the amp may be fine but once you crank it up, it heavily distorts -- something the measurements show you.

Bottom line: listening test are the gold standard.  Just do them right.  That's all.

@kota1 

@amir_asr , I followed your instructions about having a friend switch cables to the letter, I have no idea what you are talking about when you say single trial, you said guess which cable is better 8 out of 10 times, I did that, duh.

Hmmm.  How did this test move from past to present?  Your claim of 100 hour burn-in was before we interacted at all.  Your original story about you liking that cable better said nothing about repeating the test, much less 8 out of 10 times.  You even wondered why I was asking you this.  Now all of a sudden that is what you did???

No worries.  Do you know how to shoot a video on your phone?  If not, get some help and redo the whole test so that we can see and observe.  And *please* watch the video I post on things you need to be careful of to generate reliable results.

@kota1 

BTW, it is not "we" talking about blind tests. When it came to the topic of cables I posted specs of the cables listed in my profile which is exactly the topic of this thread, a manufacturer listing measurements. I never said I "blind tested" them.

You didn't?  What was this then on page 6

@amir_asr , OK, thanks for sharing. The last time I did the test you just posted was when I auditioned a Mapleshade Digital Interconnect I had for a 30 day trial (about $250). After about 100 hrs of break in I "blind tested" it with my current cable and it was MUCH better so I kept it.

$250 is a lot of money to not know, or want to know if the thing really has an audible effect.

 

I find it fun,educational and amusing learning about gear but you can get lost in all the variables that come into play. Keep it simple stupid applies to audio ultimatly Ears carry the day.

 

Wow, a lot's been going on since I've been on.  @holmz  Fantastic measurements of the the Kento Carbon speaker which received glowing reviews.  $40K is near my max to spend on speakers.  I've got to hear them.  Thanks!

@amir_asr , I did the "blind test" as you posted, that’s it. The $250 is refundable, no risk:

https://shop.mapleshadestore.com/Exchanges-Returns_ep_41-1.html

So, I already posted the specs for the interconnects listed in my virtual profile, along with my active speakers.

Here is the testing data for my Auralex Geofusors:

https://auralex.com/diffusion-testing-data-geofusor-tfusor/

and the specs:

https://auralex.com/content/productdocuments/GeoFusor_ProductDocumentation.pdf

Aurlalex is pretty good about posting specs.

All we get from you is more hot air....

Still waiting...🙄

As to absolutes on interconnect cable design.  During the past several decades, GroverHuffman cables has removed metal casings and replaced them with high quality plastic casings with excellent contact areas for soldering.  No ferrites ever used.  His speaker wire is not limited by short lengths.  I am using his 6' cables on my video and second audio system and 16' (former home-30') lengths on the main system.  The cables are not test measured for these aspects.  They just sound better.  There is nothing wrong with using multiple ears (now 1000's of sales) to confirm the results of the advancements in his cabling.  

@jerryg123 

I am a dog guy @amir_asr just not a one to listen to shills, and liars that hide behind alleged science.

So sad and pathetic.

Why is it that people who have least amount of familiarity with audio science the ones that judge others to not have any such knowledge?  If I asked you how many research papers you have read the answer would be close to zero, right? If I asked you if you have any professional experience in audio, the answer would be zero, right?  If I asked you if you have ever had a mentor who knows audio science, the answer would be zero, right?

Why do you do this?  I answer: because audio science doesn't agree with what you have taught yourself from random individuals online, or improperly conducted listening test evaluations.  Show some emotional maturity in this regard.  Most of equipment I test at ASR forum come from members.  Out of the entire set of what I test, I only recommend about 1/3 of it.  The rest just don't perform.  Yet the people who send them to me are still happy to have done so and like the fact that they finally have some reliable data about their gear.  The move on with optimizing their system that way and routinely wind up with more performance at much less cost.

@kota1 

@amir_asr , I did the "blind test" as you posted, that’s it. The $250 is refundable, no risk:

Folks sell ointments online to grow hair with money back guarantee.  That doesn't mean I am going to go and buy them to try and I hope you are not either.  They are hoping that you procrastinate and get stuck with the thing whether it performs or not.  It is the oldest trick in the book for mail order/online selling.  

And it is not free either.  You are not only responsible for return shipping, you must also insure it and go through the hassle of boxing and sending it back.  On top of that, they could complain about it not getting to them, being damaged, etc.:

" We strongly encourage customers to send product returns using a shipping method that is both trackable and fully insured.   It is your responsibility to ensure the returned item arrives to us undamaged.  Mapleshade will not accept responsibility for returned items that are lost or damaged during shipping.  Once received, we will process your return promptly.  Then we will issue your refund or credit -- or ship your exchange item as has been prearranged."

Really, stop acting as PR person for companies and start to advocate for consumer rights here.  Demand that they provide measurements of two audio gear, one with their cable and one with a generic one.  See if the output of your audio system actually changes.  Don't fall for empty claims for the cable.  You don't stick a digital cable into your ear and listen.  You listen to the output of your system. 

And to be clear, there is no way, no how that digital cable improves the sound of your system -- with or without break in.  I will donate $1,000 to your favorite charity if you can properly demonstrate otherwise.

I have added my main listening room components and front and back walls of that room. I have a small amount of reverb, corner echo which the center cloth absorber eliminated. My room isn’t as near perfect like the two @Kota 1 examples show but it’s pretty close.  I feel sorry for Mike for letting Amir in.  In all of the systems I've heard, no one wanted to give me measurements of their room/system/performance and I didn't ask them either.  No one cares, only Amir/ASR members.  Mike is too nice.  

Amir is so full of it... I tried six digital cables and they all sounded very different. Not just to me, but to five other listeners, two golden ear friends. My wife who is not an audiophile but has a very keen sense of sound gave me her comments. The SR Atmosphere X Euphoria was the obviously best cable with no apparent colorations/neutral sounding, bested or equaled all other cables in every sonic aspect. Well worth the money/$1500. However, Grover Huffman’s very inexpensive digital cables $200? are quite good and came in second, mostly lacking in depth, it’s forward sounding. For $10, Monster Cable’s digital cable was rather bland but neutral, lacking dynamics mostly, okay resolution and okay, not great ambiance/depth/width perseption.

@amir_asr , you raise an interesting point about risk. As you are a dealer I respect the fact you might not like when a manufacturer or dealer assumes all the risk in a transaction by offering a 30 or 60 day return policy. The manufacturer or dealer likely feels the return rates are low enough that the policy is profitable since it attracts new customers that otherwise might not try their products..

As a customer I prefer to deal with these types of companies, YMMV.

Just for you @amir_asr you are as much science as the wagon peddlers in the old west.

 

 

@kota1 

@amir_asr , you raise an interesting point about risk. As you are a dealer I respect the fact you might not like when a manufacturer or dealer assumes all the risk in a transaction by offering a 30 or 60 day return policy.

Once more, they don't assume all risks.  You have to pay for return shipping and hassle of boxing and shipping it back to them.  Then you sit there waiting for a refund which may or may not come.  And that burn-in period requirement is a sure way to make sure you don't immediately send the thing back.

You are a perfect victim of their marketing if you fall for this scheme.  Here is the wiki for you: 

"The use of money back guarantees has grown significantly over the last few years and has become standard practice in direct marketing across all media. Very often, unreliable businesses use it as a tactic to reel the customer into a false sense of safety....Issues relating to false guarantees have become so common in the United States that the Federal Trade Commission has specifically addressed the issue in the Code of Federal Regulations Handbook (§ 239.1)."

I suggest not being such a gullible consumer.  It is folks like you who let these companies get away with empty and false claims for their products.  Instead of being an advocate of audiophile buyers, you have joined the sellers in promoting junk audio products with zero benefit to fidelity of your system.

@dustyb13 That’s is the opposite to @prof posted on the rebuttal site. He is arguing with other ASR members that listening isn’t meaningless despite measurement results. He is using/preferring an inferior measuring CJ pre-amp instead of a very superior measuring Benchmark pre-amp.

@millercarbon I have in wall activated carbon filtering paneling which effectively removed excess bass nodes in the room. It was designed for six 12" woofers in my current speakers (or future speakers). Excess and uneven bass response is never a problem in my room Slight corner treble echo/reverb is as well as coherence/focus that a simple cloth in a narrow strip on the front wall cures (pending a more aesthetically pleasing panel or covering). When you walk into my room, it is unlike an anechoic chamber but rather quiet and calm. Once voice/music is heard, it is evenly transmitted and a touch on the live side, like a good performance hall. All of those absorption panels on the side walls and ceiling were designed to dampen the reflectivity of the cherry plywood finish. After reading Amir’s comments on Mike Lavigne’s room, maybe my room does "sound" better.

@fleschler 

 

Amir is so full of it... I tried six digital cables and they all sounded very different. Not just to me, but to five other listeners, two golden ear friends. My wife who is not an audiophile but has a very keen sense of sound gave me her comments.

People who believe in the results of everything from homeopathy, to new age healing crystals, to...name your unscientific belief...give anecdotes just like yours for their beliefs.

Some people just don't know what they don't know, and refuse to learn...and that's how we get a world suffuse with wild belief systems.

Again, as you can see if you read Amir carefully, while he has a good technical basis for being skeptical of some of the claims being made here, the door is not completely shut on any of your claims, or anyone else's.  It's just that he's looking for better, stronger evidence than yet another audiophile saying "My friends and I heard a difference!"  And quite rightly so!  Everything from green pens on CDs, little brass bowls placed on walls, stickers and pebbles placed on components, have had such testimony!

 

Until you grasp the relevance of listener bias and it's influence on our perception, your continued use of anecdotes to support technically dubious claims will continue to miss the point.

 

 

 

 

 

 

So @amir_asr feel better? Wow that took a lot for you. Did you take a nap? So you are making assumptions based on what you are reading on the internet and you do not know a single thing about me.

You did what you accused me of. Where is the science ?

Now what I do know about you is you have never posted your system or listening room. You have never posted the so called measurements for your room and system. Well not here anyway and I will not go on your site to help you secure donations from your minions.

I also know you are not an EE all you are is some guy with some software (that a member had to teach you how to use) and then you banished him from ASR. Yes that guy was over here saying all kinds of nice stuff about you and your lack of credentials.

So here we are back to that Elixir Salesmen (not the great Heed Integrated). That is you, a wagon peddler and the internet is your wagon and you con people to contribute to you.

When I bought my many systems I consulted professionals that came and measured (I am not anti measurements just anti shills and con men) setup gear and we did demos. We found what SOUNDED right in my home and that there was synergy in all the components across the entire chain, Acoustic treatments, cables, power, sources and amplification. Do you offer that type of service or do you just sell online? Would love to hear of some of your success stories from clients.

See when I am out of my element I do not throw cash at a problem I hire experts and get solutions. I may seek feedback form places like WBF and Agon but that is just part of my process.

I look at your expertise like those guys who claim to have served in the military, you know stolen valor.

You are not an expert, scientist, engineer or a respected reviewer. All my opinion. 

Please have a great evening and go play with your dog.

 

Why is it that people who have least amount of familiarity with audio science the ones that judge others to not have any such knowledge?  If I asked you how many research papers you have read the answer would be close to zero, right? If I asked you if you have any professional experience in audio, the answer would be zero, right?  If I asked you if you have ever had a mentor who knows audio science, the answer would be zero, right?

Why do you do this?  I answer: because audio science doesn't agree with what you have taught yourself from random individuals online, or improperly conducted listening test evaluations.  Show some emotional maturity in this regard.  Most of equipment I test at ASR forum come from members.  Out of the entire set of what I test, I only recommend about 1/3 of it.  The rest just don't perform.  Yet the people who send them to me are still happy to have done so and like the fact that they finally have some reliable data about their gear.  The move on with optimizing their system that way and routinely wind up with more performance at much less cost.

 

@amir_asr You are so full of crap!

Many retailers in this channel offer 60 and 90 day returns. No questions asked. Guess your business doesn't have the financial resources to put their money where their mouth is.

Just a few: Upscale, Music Direct, Audio Advisor, and on and on.

Cant run with the big dogs stay on the porch. 

17 If you can't run with the BIG DOGS you best stay on the ...

Think we just have a False Profit in you. 

 

Issues relating to false guarantees have become so common in the United States that the Federal Trade Commission has specifically addressed the issue in the Code of Federal Regulations Handbook (§ 239.1)."

 

@jerryg123

Now what I do know about you is you have never posted your system or listening room.

 

I seem to remember you posting on the very thread in which Amir’s system, with measurements, was indeed posted.

Here is is again:

 

 

You won’t visit ASR to gain accurate information about the person you are speaking about...yet you will nonetheless tell people about Amir’s credentials?

I’m afraid your posts against Amir seem full of sound and fury, and little else.

@amir_asr , I bought an audio product recently from Amazon and it had a 30 day return. I decided I would not keep it. I took it to a local store with a QR code which simply took the package, scanned the code, and that was it I got the refund the next day and didn't pay shipping, package it, nothing. 

This policy seems to work well for Amazon and its associated vendors and apparently customers too. 

@prof, thanks for posting this.

@amir_asr , can you confirm this is your actual room, system, measurements etc?

Any comments about it you want to share re: the specs/measurements that the manufacturer supplied?

If you want help or just want to discuss improving your FR I think this thread would be appropriate, feel free to join:

 

 

@prof

People who believe in the results of everything from homeopathy, to new age healing crystals, to...name your unscientific belief...give anecdotes just like yours for their beliefs.

Everything from green pens on CDs, little brass bowls placed on walls, stickers and pebbles placed on components, have had such testimony!

Until you grasp the relevance of listener bias and it’s influence on our perception, your continued use of anecdotes to support technically dubious claims will continue to miss the point.

Okay, you 100% ignore my abilities to determine at least in the acoustic music realm, what sounds correct versus incorrect, better versus worse. Amir admited he has no comparable EXPERIENCE in the performing and recording in major concert venues (in Southern California, old and newer venues) as well as examining many recording studios for professional evaluation of their construction for appraisal purposes. I am not an expert although I have friends who are leaders in the remastering industry.  My "anecdotes" are based on my hearing abilities. These are NOT unscientific beliefs despite being unfounded on scientifically tested measured results. I’ve dismissed most tweaks I’ve tried or heard/experienced because of the lack of significant differences or no differences heard.  All your above named audio tweaks I've dismissed after trying them (green pens) or hearing them elsewhere, in and out of a room/system.  

I have repeatedly stated that everyone has their own listening bias. This does not negate relevant claims of differences heard. Audiogon is replete with anecdotes from contributing listening members. It does not mean everyone’s anecdotes are relevant.

I desire measurements as a starting point. I’ve mentioned why and how they can help avoid badly measuring/sounding equipment/cables/tweaks earlier. Without measurements, the next best thing is trial and error.

You admit that the better measuring equipment does not always provide the most enjoyment. I am old enough with sufficient audio experience to determine significant differences which can be explained in anecdotes. You don’t have to believe me. You can try them for yourself if given a 30 to 90 day trial period from many manufacturers.

 

My "anecdotes" are based on my hearing abilities.

You continually ignore that you are not superhuman, and that your "hearing abilities" are fallible. You really can imagine hearing differences. You really, really can!

No amount of "expertise" can get around these biases. It’s why scientists themselves - those MOST in a position to be aware of their biases - use methods to counteract the influence of their biases.

 

I’ve dismissed most tweaks I’ve tried or heard/experienced because of the lack of significant differences or no differences heard. All your above named audio tweaks I’ve dismissed after trying them (green pens) or hearing them elsewhere, in and out of a room/system.

Then what about all the audiophiles who claimed the DID hear differences with those tweaks that you have "tested and dismissed?" Are they right that they work, or are you right that they don’t work? What do have to offer beyond a form of he-said/she-said approach to these problems?

 

I have repeatedly stated that everyone has their own listening bias. This does not negate relevant claims of differences heard.

Yes, as you have seen I have argued that here and on ASR. The fact that there is some noise in the system - listening bias - does not mean our perception is entirely unreliable.

HOWEVER, when you want to be REALLY SURE your conclusion is true or well justified, THEN it makes sense to account for the variable of human error in your method! And even more: the more a claim edges in to the "extraordinary" category: that is the more that it would seem at odds with what relevant experts in engineering or the relevant science understand to be unlikely, it makes sense to be MORE cautious about how you are drawing your conclusions.

That’s why the claim someone added more salt to their recipe changes the flavour doesn’t immediately demand rigorous evidence, but if they say they’ve built a perpetual motion maching in their backyard..sorry...a group of guys saying "It’s true, I seen it with my own eyes" will hardly do. It’s going to have to pass much more rigorous lines of evidence. The people who are IGNORANT of the relevant physics and THINK they saw a perpetual motion machine really DON’T have just as much of worth to say about the claim as relevant experts, even if they don’t have a grasp of their own ignorance on the subject.

This is what Amir has to deal with all the time. Most audiophiles are simply not very technically informed, and can’t really evaluate the plausibility of the technical claims made by high end audio companies. So what they have just their "experience listening" which has the problem of perceptual bias. And if they think they hear a difference, well that’s enough to show the claims made for the product are true!

This really is a problem of people who just don’t know what they don’t know. Many audiophiles just aren't in a position to understand when a claim made for a product is bullsh*t or very dubious.   And until some level of intellectual humility arrives, as in "hmm, maybe I shouldn’t be as confident as I am, and maybe someone with expertise does have something to teach me..." then this cycle will never be broken, and the expert will be cast as the dogmatist or ignorant.

And so it goes...

 

 

 

 

 

 

@prof your memory is failing you,  kind a like a guy I know.

So move along I really do not care and will not patronize his site.

@jerryg123 

Ok, so I am wrong that you ever participated in, or read the other recent threads on ASR?  (In which Amir appeared, and in which his system was posted)?

Please be clear on that if I was wrong.

In either case, you were the one who wrote:

Now what I do know about you is you have never posted your system or listening room.

So if you had not participated in or seen the other ASR threads, how can you tell anyone that you KNOW Amir has never posted his system?

Best to pick a story to stick to :-)

 

 

@prof not playing. Hope your battery is fully charged in that trolling motor. 

Never posted here and he had been asked by several in this thread.

Now move along old chap. 

Well @jerryg123

Let’s sum things up.

You claimed to Amir:

Now what I do know about you is you have never posted your system or listening room.

I then suggested you had been on the very threads in which Amir’s system had been posted.

Your reply, instead of admitting the truth, was to claim my memory was failing.

So let’s see who is telling the truth.

Here is the previous thread on ASR to which I was referring:

 

 

As anyone can see for himself, you are posting throughout that thread! Yes, the one I said I thought you’d posted in.

In fact, in that very thread YOU once again untruthfullly claimed ASR was only about "Kmart" gear, AMIR did post a link to his system info upon request, right here:

 

AMIR wrote:

"As to my system, you can see a brief overview and pictures in this review thread: https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-lyngdorf-roomperfect-eq.6799/

 

 

So not only were you lying by implying my memory was wrong, and lying that you "know" Amir has never posted his system or listening room, even Amir’s system itself shows you were making bogus claims that it’s all about "Kmart" gear on ASR.

I don’t really know what people get out of trolling...I’ve never really understood the urge to troll...but if you are comfortable being continuously caught out fibbing in public...you do you I guess. People can see what’s what. ;-)

@prof You are such an expert in your opinion denying the plausibility that I hear great differences and can make an informed opinion of my own.  I've heard/tried the green pen, I've heard magic stones and bells and surface treatments.  I could tell that there was a difference but to me, they were insignificant and so minor as to not warrant further study.  When I say there is a very significant difference, THERE IS!!!!!  Just like adding salt and tasting it, unless one has lost that ability.  That's why I have rejected so many tweaks as being INSIGNIFICANT to the enjoyment of music.  Blind ABX testing on these tweaks and I bet I couldn't identify the differences.  Change from six Pangea power cables to six Grover Huffman power cables in a high end/high cost system-OBVIOUSLY SUPERIOR!!!!!   Just like adding salt.  

Just like beating a dead horse here.  I've made mistakes, always with subtle changes, tweaks in particular in my prior home with a lesser quality room and system.  

@prof like I said charge those batteries in your trolling motor. Slow day in Toronto?

I said again and again I will not set an electronic toe on that shills site. 
 

Go Leafs!
 

 

 

When I say there is a very significant difference, THERE IS!!!!!  

And that’s great. What the professor is saying is if you have nothing to back up what you are hearing, that’s just anecdotal, and you are making dubious unsubstantiated claims. If not simply hallucinating. You should refrain from posting such dubious claims in the Internet. You are risking some poor soul wasting hundreds of dollars of their hard earned money, blood sweat and tears, paying for enrichment of the evil audio manufacturer.

 

So please…. before you post anything, make sure you have proof. Either measurements, or blind tests certified by a third party independent panel. Preferably both. 

@thyname , your system looks great, is that a Mapleshade Samson rack you are using? I use their Bedrock speaker stands in the mancave and platform in my HT, Thanks

@prof You are such an expert in your opinion denying the plausibility that I hear great differences and can make an informed opinion of my own.

No, precisely the opposite. I recognize my limitations as NOT being an expert.

That’s why I value explanations by actual experts.

My whole approach starts from my (and humans in general) fallibility.

This seems hard to grasp for people who have trouble accepting their own experiences may be fallible.

 

 

When I say there is a very significant difference, THERE IS!!!!!

 

That is the confidence one sees from religious dogmatists. "I experienced it; nobody can tell me otherwise." By valuing your subjective opinion above any other evidence, you have made your belief unfalsifiable - no outside evidence to the contrary can budge you. I personally, along with plenty of others, prefer not to treat audio as if it were like religion.

So to provide a contrast: I really seem to perceive "obvious" differences when I’ve done some tube rolling. I’m fine to proceed on my experience. But I recognize I’m quite fallible and like anyone prone to listening biases. Therefore I would not simply declare "If I say there is an obvious difference THERE IS." I can acknowledge the point made by a skeptic that it could be some type of expectation effect or perceptual bias, rather than the sound changing audibly. I’m willing to be wrong, and it does not threaten my self-worth to admit my perception may be in error.

So, I guess that’s how we see things differently.

 

Blind ABX testing on these tweaks and I bet I couldn’t identify the differences. Change from six Pangea power cables to six Grover Huffman power cables in a high end/high cost system-OBVIOUSLY SUPERIOR!!!!!

 

So...do you mean you have reliably identified these power cables under blind test conditions?

@prof Yes that is why they reject Amir and I guess you too. Clearly you have nothing better to do. Yep troll on has to getting chilly on the lake. Bit windy today. 

Have a nice evening, hope you find something to do, listen to or read other than old old threads old chap.

 

Peolke get a little ornery sometimes when there are no facts that support a belief.  Facts are good!  always better off with them than without.  Wishing something to be true has limited potential. 

This thread is like a group therpy session for 4th graders.

When a product shows nothing to back up its claims, I am pretty sure that it is make believe.

 

And don’t forget to bake the cables.

Wow, a lot's been going on since I've been on.  @holmz  Fantastic measurements of the the Kento Carbon speaker which received glowing reviews.  $40K is near my max to spend on speakers.  I've got to hear them.  Thanks!

@fleschler Not everyone cares about time and phase, so if you dislike them, then you are well ahead of the game as you can likely scratch off Dunlavy, Theil, and few others with a similar design ethos.

@prof (quoting Majidimehr)

"As to my system, you can see a brief overview and pictures in this reviewthread: https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-lyngdorf-roomperfect-eq.6799/

It’s clear that ASR’s founder has some pretty reasonable gear, and posting it as a virtual system here—while that would be cool—isn’t obligatory to demonstrate that.

There are some oddities, discussed at ASR in fact: he’s tardy maintaining/repairing those classic ML amps; he hasn’t subjected them to his very expensive analyser; nor subjected those speakers to his very expensive measurement robot; apart from some shag-pile he eschews room treatment (iirc in all cases, obviously).

Now there are surely reasons: that gear is heavy; they’ve been measured by others; the amps won’t deliver the "graph hygiene" of a Topping; he gets good enough sound with room EQ at LP; and so on. And ultimately those choices and priorities are his, really. Notwithstanding that I would make different choices.

 

@thyname , nice Mapleshade rack, love their cables too, and such a solid company to work with. If you look in the pic in my system you’ll see the Mapleshade platform/isolation system on the right. Have you tried their cables yet?

@axo1989 , whatever floats your boat is cool, I agree. But you shouldn't cast spitballs at other peoples boats when yours has holes in it, right? 

@amir_asr , why not join us in the thread on frequency response to discuss?

@kota1 

whatever floats your boat is cool, I agree. But you shouldn't cast spitballs at other peoples boats when yours has holes in it, right? 

Well, one of the "different choices" I'd make is to be less of a [redacted] on the interwebs. Whether I succeed is another matter. 🙂

@holmz Guess that is why you keep coming back eh.

This thread is like a group therpy session for 4th graders

We could all pause and take a good look at ourselves occasionally.
 

One could argue that sticking to the thread topic is not trolling.
If you want to try that sometime, then I am sure few would complain… @jerryg123 

… then you can change your moniker to jerry1234.