GR Research B24 AC Cable Review Follow up [Entertainment]

Summary

ビデオでは、AmirがGR研究から送られたケーブルをレビューし、その安全性や設計の欠陥を指摘した。特に、安全認証の欠如やプラグの誤解を招くデザインに問題があると述べた。彼は、ケーブルが音楽に与える影響を測るために音楽ファイルを使用し、その結果、他のプレミアムケーブルと比べてわずかな抵抗の低下とノイズへの免疫性があるものの、音楽信号には変化が見られないと結論づけた。また、メーカーが主張する「オーディブルな違い」を科学的に証明する盲目テストを求める一方で、メーカーの反論ビデオは実質的な内容が乏しく、科学的根拠は示されていないと批判している。

Takeaways

• 😀 アミールは、gr research社からケーブルのレビューを行い、ビデオでその反応に対処することを決めた。
• 👕 彼は、地球が平らではないと示す特別なTシャツを着て、gr researchの創設者であるダニーが昔よく着ていたことを指摘した。
• 🔌 彼はB24ケーブルについて述べ、安全認証がないこと、デザインが悪いこと、プラグのピンが太いことなどの問題点を挙げた。
• 🎵 彼は、ケーブルを使用した音楽のキャプチャーを通じて、音楽的な違いはないと主張した。
• 📊 彼は、ケーブルが他のプレミアムケーブルよりもわずかに低い抵抗値とノイズへの免疫性があることを確認したが、その影響は最小限だと述べた。
• 🎧 彼は、ダニーが行ったビデオのコメントで行ったと主張する盲目テストの正当性について疑問を呈した。
• 🔉 彼は、ケーブルが電気的なノイズを減らすと主張するが、ACケーブルは音楽信号を運ばないため、その重要性は低いと述べた。
• 🛠️ 彼は、ケーブルの内部を示し、95％はロープで構成されており、ワイヤーはその周りに巻かれていると指摘した。
• 🔍 彼は、ケーブルが電気的ノイズを減らすと主張するが、実際には音楽信号自体に変化がないことを示す正しいテストが行われていないと述べた。
• 🚫 最後に、彼は、安全基準がないため、そのケーブルは使用しない方がよいと結論づけた。

Q & A

ビデオレビューで指摘されたケーブルの名称は何ですか？

B24ケーブルです。

レビュービデオで述べられている問題点は何ですか？

安全認証の欠如、デザインの不良、プラグの厚さが問題で、適切に接続できないことなどが指摘されています。

レビューアーが行ったテストの種類は何ですか？

レビューアーは音楽のnullテストと、ケーブルの抵抗やノイズへの耐性の測定を行っています。

レビューアーはケーブルが音楽信号に与える影響をどのように評価しましたか？

音楽信号の波形が変化しないことを示すために、音楽を異なるケーブルでキャプチャし比較したテストを行いました。

レビューアーはケーブルがノイズにどのような影響を与えるかどのように示しましたか？

特定のテストを通じて、ケーブルが外部からのノイズを少々減らすことができることを示しましたが、これは音楽信号に直接的な影響を与えるとは言えません。

レビューアーは製造業者のビデオレスポンスをどのように評価しましたか？

製造業者のビデオレスポンスは実質的な内容が少なく、主張がはっきりしていないと評価しています。

レビューアーはケーブルの「ブレイクイン」時間がなぜ不適切だと主張していますか？

ブレイクイン時間が特定の200時間であることの根拠が示されておらず、適切なテストが行われていないためです。

レビューアーはケーブルの安全性について何を指摘していますか？

ケーブルには安全認証がなく、設計上の問題があると指摘しています。これにより、使用する際に安全リスクが生じ得ます。

レビューアーは製造業者が主張する「聴こえる違い」に対する立証方法とは何ですか？

製造業者が主張する「聴こえる違い」を立証するためには、バイナラ盲テストを行って、聴覚的に検出できる違いが統計的に有意であることを示す必要があると指摘しています。

レビューアーはケーブルの性能を測るために推奨するテスト方法は何ですか？

音楽信号の変更を測るための正しいABテスト、ノイズレベルの測定、そして製品の仕様に応じた適切な使用テストを推奨しています。

Outlines

00:00

🎤 オーディオケーブルレビューと反応

ビデオの冒頭では、Amirがオーディオ・ソングズ・レビューから来ており、数ヶ月前にGRリサーチ社からケーブルをレビューしたことを思い出す。そのレビューに対して、GRリサーチ社の創設者であるDannyがビデオで反応した。Amirは、Dannyが以前は地球が平らだと主張し、それに反対するTシャツを着ていたことを嘲笑った。Amirは、Dannyのビデオには実質的な内容が乏しく、レビューを求められたが、それに応えることにした。彼はB24ケーブルについて述べ、安全認証のない点やデザインの欠陥、特にプラグの厚みの問題を指摘した。また、ケーブルが音楽に与える影響を測るために行ったテストについても触れた。

05:01

🔌 ACケーブルの機能とレビューの意義

Amirは、ACケーブルが音楽信号を運ばないことを強調し、Dannyの主張に対する反論を展開する。彼は、ACケーブルは音楽に与える影響を測るテストでは意味がないと主張し、Dannyのテスト方法に対する批判を述べる。また、Amirは、Dannyが行ったテストが不完全であり、実際の音楽信号に対する影響を示さないことを指摘する。Amirは、Dannyが行ったテストが騙しであり、正しいテスト方法を提案する。

10:02

👂 ノイズキャンセルと聴覚閾の理解

Amirは、低周波ノイズのブロックが困難であり、それが壁や床を通過する原因であると説明する。また、Dannyの主張に反して、ノイズキャンセルが機能することを証明し、ノイズキャンセルヘッドホンがどのように働くかについても説明する。Amirは、Dannyが行ったテストが無効であると主張し、正しいテスト方法を提案する。

15:03

🛠️ ケーブルのテストと聴覚実験の重要性

Amirは、Dannyが行ったテストが不十分であり、実際の音楽信号に対する影響を示さないことを指摘する。彼は、正しいテスト方法として、音楽信号の変更を示すABテストを提案し、聴覚実験の重要性を強調する。また、Amirは、Dannyが行ったテストが騙しであり、正しいテスト方法を提案する。

20:03

🏠 システム要件とケーブルの性能

Amirは、Dannyがシステム要件を主張し、特定のスピーカーや設置方法が必要としていることを批判する。Amirは、製品が宣伝されているとおりに機能することを期待し、顧客がそれを自分で確認できるようにすべきだと主張する。また、Amirは、Dannyが行ったテストが不十分であり、実際の音楽信号に対する影響を示さないことを指摘する。

25:04

🚫 安全基準と製品の信頼性

Amirは、ケーブルが安全基準を満たしていないこと、特にULやCE認証の欠如を指摘し、これは製品の信頼性にとって重大な問題であると強調する。彼は、製品が安全でない場合、他の性能について議論する価値がないことを述べる。また、Amirは、Dannyが行ったテストが不十分であり、実際の音楽信号に対する影響を示さないことを指摘する。

Keywords

💡ケーブル

ケーブルはビデオの中心テーマであり、特にACケーブルやオーディオケーブルのパフォーマンスと品質が議論されています。ビデオでは、特定のケーブルが安全基準を満たしていないことや、設計上の欠陥があることなどが指摘されています。例えば、ビデオでは「このB24ケーブルは、安全認証がありません」と述べています。これは、製品の信頼性と安全性に関する重要な問題を提起しています。

💡安全認証

安全認証は、製品が特定の安全基準を満たしていることを示すマークや証明です。ビデオでは、レビューされたケーブルがULやCEなどの安全認証を有していないことが問題視されています。これは、消費者が安心して使用できる製品を選ぶ際に重要な基準となります。

💡設計

デザインは製品の外観、機能性、使いやすさに関するものです。ビデオでは、特定のケーブルのデザインが不適切であると指摘されています。特に、プラグのスリーブが前方にスライドし、誤って挿入されていると感じるという問題が挙げられています。これは、製品の使い勝手と信頼性を低下させる潜在的な欠陥です。

💡抵抗

抵抗は電気抵抗を指し、ケーブルやコンポーネントなどの電気的パフォーマンスに影響を与える要素です。ビデオでは、特定のケーブルが他のプレミアムケーブルよりもわずかに低い抵抗を有していることが述べられています。これは、ケーブルが電気信号をより効率的に伝達する可能性があることを示唆しています。

💡ノイズ

ノイズは、オーディオシステムで不要な雜音や干渉を指し、クリアなサウンド再生を妨げる要素です。ビデオでは、特定のケーブルがノイズに強い免疫力を持つと述べられていますが、その意味がはっきりしないままです。これは、ケーブルがオーディオパフォーマンスにおいて重要な役割を果たすかどうかについての議論の中心です。

💡双盲テスト

双盲テストは、試験の実行者と受验者双方がテストの条件を知らない状態で行われる試験です。ビデオでは、双盲テストが製品のオーディオパフォーマンスの客観的な評価に役立つと述べられています。これは、主観的なバイアスを排除して製品の効果を公正に評価する方法です。

💡オーディオ波形

オーディオ波形は、音の振動を視覚的に表現したもので、サウンドの質や特性を分析するのに使われます。ビデオでは、特定のケーブルを使用した際のオーディオ波形が変化しないことが示されており、これはケーブルがオーディオパフォーマンスに影響を与えないことを示唆しています。

💡測定

測定は、物理量や性能を正確に評価するために行われるプロセスです。ビデオでは、ケーブルの抵抗やノイズの測定が行われ、その結果が製品のパフォーマンスを評価するのに使われています。正確な測定は、製品の性能を科学的に評価する基礎となります。

💡フィルタリング

フィルタリングは、不要な信号やノイズを除去するプロセスです。ビデオでは、特定のケーブルがフィルタリング機能を有していると主張されていますが、それが科学的に支持されているかどうかが議論されています。オーディオデバイスやケーブルがフィルタリングを行えるかどうかは、オーディオパフォーマンスに直接的な影響を与える可能性があります。

💡オーディオ製品

オーディオ製品は、音楽や音声を再生または録音するデバイスを指し、ビデオではその品質とパフォーマンスが焦点となっています。ビデオでは、特定のケーブルがオーディオ製品のパフォーマンスに与える影響について議論されており、高品質のオーディオ製品が不要なケーブルアップグレードを必要としないことが示唆されています。

Highlights

Amir 回应了 GR 研究公司关于他之前评测的电缆视频

Amir 曾因 GR 研究公司创始人 Danny 常穿一件声称地球是平的 T 恤而批评他

Danny 制作了一个 40 分钟的视频回应 Amir 的评测

Amir 指出 B24 电源线没有安全认证，这是一个重大问题

B24 线缆设计存在缺陷，插头的套筒在插入时会滑动，造成误导

Amir 通过音乐测试和测量表明，B24 线缆与普通线缆在音质上没有差异

B24 线缆的电阻比其他高级线缆略低，但差异微乎其微

Amir 强调，即使电缆对噪声有一定的免疫性，这在实际应用中并不重要

Danny 在视频中声称电缆能减少噪声，但 Amir 认为这种说法含糊不清

Amir 批评 Danny 没有提供任何可以复现的测试结果来支持他的说法

Danny 声称他的电缆在盲测中表现良好，但没有提供具体的测试协议

Amir 指出，如果电缆真的能改善音质，应该有可测量和可复现的证据

Amir 展示了他的电缆噪声测试，证明 B24 线缆在特定条件下确实能减少噪声

Amir 强调，即使电缆能减少噪声，这种改善也远远低于人耳的听觉阈值

Danny 声称需要 200 小时的煲机时间，但 Amir 质疑这个数字的来源和合理性

Amir 认为，如果电缆需要煲机，那么应该由制造商完成，而不是消费者

Danny 声称只有高端系统才能体验到电缆的改善，Amir 认为这与产品宣传不符

Amir 呼吁进行双盲测试来验证电缆的音质改善，而不是依赖个人的主观听感

Amir 总结，他的测试既全面又科学，而 GR 研究公司的视频缺乏实质性内容

Transcripts

hello everyone this is Amir from audio

songs review I did a review of a cable

uh from a company called gr research uh

a few months ago and a company recently

posted a video responding to that and I

made a number of points and I thought

I'd do a video and address them

um in that video I wore a special shirt

from goes by now from NASA that says you

know Earth is not flat uh we've been up

there and we've seen it there isn't a

word that is because the company founder

Danny used to wear that t-shirt all the

time and say anybody that followed audio

science must believe that the Earth is

flat and it would wear this t-shirt

which made no sense uh thankfully he

doesn't do that anymore

anyway

um he produced this 40 minute video

and I originally wasn't going to respond

to it because there's hardly anything of

substance in his uh video but some of

the members asked that I respond to it

and I decided that I should go ahead and

do that and so I marked this for

entertainment I'm not sure that there is

a whole lot of uh you know technical

knowledge being imparted that certainly

not in his video but maybe get a few

things out of it and looks like I uh uh

couldn't spell my own name on top of

that so you could do this value of this

video anyway uh so let me just summarize

this cable this B24 cable it's a power

cable has been set to uh use it with

your Source components I used it for a

pre-amplifier

I'm just summarizing the issues that I

found was that it has no safety

certification uh you buy even a you know

one dollar power cable and it will have

UL or a CE certification there's none

here and that's a big major issue it's

got a poor design and it's got this

sleeve on it that as you try to plug it

in the sleeve slides forward and makes

you think that you actually plug it in

when you haven't and that is Complicated

by uh by the fact that the pins on this

out uh plug that he's got are too thick

the ground pin is too wide to fit even

in my industrial trip light uh

um power strip that I use and I had to

force it with such energy that this slid

forward and the company says this was

glued I don't know how you glue shrink

wrap with uh here or whatever is inside

of it either way I've seen and owned

premium power cables none of them have

this kind of you know hokey sleeve on

them

um uh on this thing are you uh knowing

that that would get pushback from him

and others on on uh was reviewing this

cable I did not lead with measurements

actually now uh LED with a null test of

music so I took music uh captured it

with a cheap thin long uh throw away a c

chord and then I captured it with this

cable and as you'll see and I'll review

again that there is no difference

between it too measurements proved the

same thing that the audio waveforms

coming out of the uh preamp that I was

testing did not change my IO one iota

there were two positives it did have

slightly lower resistance than the other

two premium cables and certainly from

the thin cable but the difference was

extremely minimal as far as the impact

it has and I'll get into that and I

measured that it is more immune to noise

um but I'll again explain why that's not

Material

if you watch the company's video he

makes a number of planes and but then he

also goes in the comments and

exaggerates some of those claims and

adds to him

um I'll be going through all of this

thing you could just sort of glance at

it but it's ambiguous what he's saying

half the time like he says noise is

reduced noise in what direction uh if no

is going into AC cable why do I care

about noise going into an AC cable for

example uh it's not a you know carrying

musical signal there's a noise going out

so not very precise and that you know

the any improvements in this cable makes

can't be measured and interestingly

enough he makes it a given that he makes

an audible difference therefore anything

that you say that would invalidate that

would say that what you're saying is

wrong so if you say uh you know look why

can't I measure this thing he says well

your measurements are wrong because I

know that there's audible difference so

if your measurement doesn't show it you

know the uh that's your problem not mine

which is kind of silly he also claims

when people ask them to do a blind test

in the comments he says oh I've passed

hundreds of them he's passed hundreds of

them but we don't have a single one of

them showing this power cable making a

difference and and important what

protocol is used in that blind test

so it starts off with saying I'll have

an agenda I told him in my comment and

that's kind of silly to make that point

you have an agenda you're selling a

cable and you're patting yourself on the

back that you're the expert and you have

Golden Ears and that you think you know

it it makes a difference like don't

bring your gender into this discussion

because you know you you have a serious

agenda on my part I showed the good with

the bad I didn't have to do that I could

have just ignored some of the good

things it does with noise reduction and

uh and uh lower resistance but I did and

the difference between two of us is that

you know I'm not here to make a living

off of this uh gig there are no ads for

this video there's no sponsorship

there's nothing on audio science review

either on this thing so

but put all that aside everything I do

you know people can replicate and and

confirm unlike his claims we can't you

know he says I hear the difference well

Greg we don't know how to confirm that

but with mine when I show null tests and

measurements everybody can confirm my

stuff and if I keep uh you know cooking

these things people will find out that

I'm cooking them and and helping out a

business uh literally speaking and this

thing so

um you know there's a big difference

there anyway

um first thing starts with hey you need

200 hour breaking how stupid of Amir to

to not do the 200 hour break and

um and my first answer to that is where

the 200 come from why isn't it 150 why

is it 180 300 500 where'd that number

come from it's a very specific number

which means it was measured if this

measure tells how it was measured how

did you determine that that 200 or

something magic happened uh or even

close to it why isn't it 50 hours or 10

hours uh nothing like that was provided

other than just declaring that you need

200 hours

um key thing to understand is that AC

cables don't carry your music so while

some people claim you know things happen

to your inner connection speaker cables

well none of that matters for a power

cable power cable just carries raw power

and it's pretty dirty coming out of your

wall and uh you know what are you doing

with with forming the you know the uh

insulator or whatever people are client

uh on this thing one big disappointment

for me personally was that he showed

what's inside the cable and it's this

just this thick rope and this jacket

which means 95 of what you think you're

buying is actually not wire the wire is

actually much thinner it's wrapped

around this this rope so you're paying

for a thick rope with some wire wrapped

around it uh on this thing so you can go

make your own then you know just advice

I'm broken and wrap the wire around it

with this jacket around it but it's very

typical of how everybody thinks they

should make all these companies sell

premium cables think the thicker the

better and it is people just intuitively

think y'all must be bigger better cable

so that you put a thick rope in the

middle anyway

um if this is required how come there

are people pricing the cable as soon as

they get to this that they sound

improving that somebody said that in the

comments why doesn't he complain and say

well you didn't break it in so what your

heart was invalid you got to let it go

for 200 hours what if 200 hours it gets

worse not better

and then finally if it needs 200 hours

you do it you're charging me 400 for

this cable you burn it in for a week

whatever needs to happen you do it if

you need to run over with the tank run

over with the tank don't make it my

problem to go do this uh you know I

expect you to sell me what you advertise

to be which is it sounds great so uh you

know you should do that

okay

um he then claims the only bit of

technical that it brings to this 40

minute video is this test that actually

turned out to be incomplete he says you

can't null noise but my null test wasn't

the purpose wasn't to show that noise

had changed although if it had you could

have seen that but that the music itself

had not changed a lot of people get

these things because say the base is

tighter the sound stays wider deeper for

all those things to happen the musical

signal needs to change the way we detect

depth is based on sound intensity and

timing difference between what our two

ears pick up and that for the musical

content has to change for the two years

to hear some different and have a

perception of Sound State changing and

uh so that's my null test and I'll show

you in a second what the null test

showed and was that the musical content

did not change if you want to climb to

the noise level went down right that's a

different story but let's continue with

the test here on to prove his point that

now you can't null test excuse me he

goes in his room and points a microphone

to the capturing the noises in his room

excuse me and uh he takes a snapshot

freezes it in green and then it runs

another one for use it in white and he

says look if I subtract one from the

other noise wouldn't be reduced well

first he doesn't do the subtraction it's

like you're going to do a notice do an

out that shows that the subtraction

didn't do anything if he had done it he

actually would have noticed that it will

actually do some noise reduction why

does it do noise reduction because if

you look at in here first the spectrum

of noise is not flat it raises in low

frequencies and it goes down to higher

frequencies that's because low

frequencies can't be blocked easily

they're on the directional on the travel

far they go through walls and floors and

so forth and uh unlike electronic noise

which tends to be quite random and quite

wide spectrum oops

uh on this thing so

um and uh the more important thing is

that if you actually look in here you

see specific events happening in here

it's not a random thing this spike is

there in both instances uh on this thing

the reason for that is that we call this

correlated noise a lot of noise like

this is coming maybe from a compressor

for an air conditioner that's traveling

through and that motor's spinning at

certain frequency it actually generates

what we think is noise but when you

analyze it with a spectrum you actually

see that discuss the pattern to it uh

that has to do with the motor design and

everything and uh you know and that's

what noise canceling headphones search

for and and uh reduce the level and

that's what noise canceling headphone

works it takes advantage of correlation

and noise and reduces it by his uh claim

noise canceling headphones wouldn't work

because you can't reduce noise and

indeed that's what noise cancer

headphones do they detect a pattern and

make an inverse signal and subtract it

and and you get a noise reduction in

there so the whole little test in here

was bogus it was like you know smoking

mirrors designed to say I know something

about something but completely wrong

domain you don't use acoustic noises

example of noise cancellation where

noise cancellation does work you want to

use electronic products go ahead and

test the audio product with the two

cables and then show us the Spectrum

difference in noise you climb noise is

reduced okay plug in the two cables if

you have instrumentation show us the

noise before and after and and then

we'll be convinced look at my now tests

on this Vivaldi track and look at the

difference between the two it's pure

noise at extremely low levels over here

and this is well below uh 16 bits you

know you can see 93.5 DB no and it's

just Pure Noise if you click on these

things you won't even hear it unless you

have a very high gain preamp this proves

that you can't there's nothing that's

happened in the music itself and this is

what you kind of test you run if you're

going to climb sound stages change and

all these other benefits you got to do a

proper test and this is a proper test of

a b of two cables it is not an AB of a

microphone noise before and after in his

room which has nothing to do with

anything

okay he then goes into this whole you

know patting himself on his back you

need to have the right system to hear

this and like mine uh where you have

expensive speakers or moved away from

the walls and all this stuff I'm like

well if those are the requirements why

don't you put that in the brochure or

website saying that hey you don't have

this kind of system don't buy this uh if

you're not using my speakers don't buy

them if you're not going to put them

away from the walls don't buy it none of

that is in there and these people claim

to plug it into any old system any

crappy system or good about it different

and they'll hear differences so

therefore his claim that you need these

systems is wrong or these people are

wrong that they say they hear a

difference and then he makes fun of me

using uh headphones to hear differences

well I needed to use headphones because

I wanted to hear that noise that I just

showed you in here and it's extremely

low level to hear that noise you put a

sealed headphone on your head and then

use a headphone amp with a lot of gain

that is extremely low noise itself and

then then you crank it up and what I

hear is just exactly you know what I

described which is just background noise

is extremely low level that is

definitely not all about normal levels

uh he claims headphones are no good it's

like well you know you haven't read a

single piece of research paper every

lossy audio code like many DSP

algorithms even Acoustics researchers

done with headphones because they block

the noise let you put and listen at much

higher level and get sort of inclusively

crosstalk so each headphone you know

brings one signal to each year on this

thing no it's not good to detect there's

a Sound Stage difference or whatever in

a classical sense you use speakers for

that but for that I'll use an altest and

I showed that a musical signal had not

changed on this thing okay

then he uh jumps on the fact that I did

show that there's uh less noise being

induced into the cable and the way I

induce cable is that I took a giant

Transformer uh that comes with my uh

stack uh with my petrol measurement

system and I got that aligned perfectly

right next to the cable and then I

measured the cable as an interconnect so

it was hooked up to the input and output

of my audio Precision analyzer and then

I compared his cable against this

generic thing cable that I was doing and

indeed his cable picks up less noise

from that Transformer that's generating

this huge magnetic field right next to

it worst case situation and I show the

difference so yes there's something to

the geometry of that cable versus

another versus the generic one that

picks up less noise but we gotta put

that in context and in context here is

the screen graph which you didn't

understand or ignored which is showing

the threshold of hearing in here

relative to the playback level of your

system and when I do that the noise from

all of these cables if used as an

interconnect which we don't use an AC

cables and they're gonna it's well below

threshold of audibility so both power

cables actually fully transparent if

they use if you change the termination

and use them as as a interconnect there

still would be totally silent uh on this

thing so and that's why we don't hear

this kind of thing routinely right they

don't you know if people build good

systems they don't walk around bragging

about how great their system is but oh

by the way I hear all this humming noise

it's like no you're not hearing that

because our hearing threshold is very

poor and Ned and by the way you know let

me go back to his thing all this noise

how come he you know he doesn't hear him

right this is his room and look at how

much the low frequency noise it has that

goes way into uh 60 hertz the domain

that I was measuring and this is silent

to his ear because our hearing sucks in

this region uh on that thing okay

so that's that so yes there's the

configuration whatever weave he used

created some kind of twisted pair thing

um so it has a little bit of immunity

extra immunity it still picked up Noise

by the way is this blue here versus the

red so it wasn't like it didn't pick up

anything

um

then he this notion of noise gets

repeated over and over and over again

that these cable is reducing noise

either reducing noise being fed into the

power supply he claims that the cable is

acting as a filter if the cables as a

filter just measures frequency response

if I design a low pass or high pass

filter it shows that just hook it up to

a AC Mains and measure that or

artificial segment show that or just

show ambient noise I've measured

um you know the hopping a90s output and

I show that it makes no difference

whatsoever with his cable versus another

cable why because even when I use

products that do filter they income in

noise I see Zero difference on an output

of audio device why because the first

thing an audio device does a Converse AC

to DC and that processor converting to

DC which means it never changes and

requires filtering and filtering at 10

20 30 volts whatever audio copen

requires is far far far easier than

filtering 120 volts or 240 volts and at

any rate there is no filtering mechanism

here whatsoever there's nothing in there

then this cable has no Active Components

in it no passive components it's just

wire wire doesn't do any filtering it

just carries the current on on AC okay

then the other claim this is you know

favorite of many so improvements can't

be measured uh first let's start with

you know hey it wasn't that convenient

that you say can't be measured therefore

you start off with oh you can't ever

disprove that my cable does anything

um interesting enough Danny main

business is taking people's speakers and

building crossover mods for it and I

shouldn't say main business some of his

business is there and but he never

listens to it he says look here's a

measurement before and his measurement

after you all go build this mod just

going to make your speaker sound better

really I mean what if it doesn't what if

it screwed up the directivity what if it

increased Distortion uh you don't listen

you don't need to listen you trust

measurements so implicitly so strongly

but when it comes to measuring noise in

a cable all of a sudden your

measurements are no good I just showed

you noise measurement it's just trivial

to measure noise and if you can't

measure noise then get out of noise

reduction business uh on this thing so

he says you know obviously you know we

veils are removed and all this stuff

it's like great veils are on all that

removed and should be trivial to do that

testing and prove first that there is an

audible difference if there's an audible

difference when bias has been removed

knowledge of which cable is being used

removed and statistically significant

then we can go back and find a

measurement to to see if the

measurements work so it doesn't work and

until then my null test wins because you

know it shows conclusively that there's

nothing there

um

so we go back to this thing again of

audible differences exists and review

must be wrong it's like great you're

selling me water as you know that you

say you put you know gas tank in a car

makes it Go twice as fast and I say

approve that you say well no I'm just

going to say it and if you found out

that that didn't work then it's your

problem it's like no it's not my problem

you have to first show me the audible

difference reliably exists and if you

can't do that then it's no good and by

the way the test to do that is not to

keep saying I'm here you come over and

listen I'm not going to go to your place

and listen it's your job to run this

business and if you want to run a

business properly show proof points that

your your products do something and the

right solution to that isn't to say I

hear it with my own double-blind test

that we can't verify bring a group of

people audio files I'm sure he has local

audio files that even people who risk

customers bring them in bring half a

dozen people in and then run around by a

set of trials in there at least 10 times

and see if nine out of 10 times these

people can even detect which cables in

use no I don't trust him running a test

like that or somebody else going in

there have been doing there's so many

ways to have a talent these kinds of

tests where you can listen for the sound

or something or something moving or

whoever's running it is not careful

enough and leaves a way for the person

like him that's sharp and smart and is

looking for every opportunity to say

there's a difference to to find a towel

in there and so let's just remove all

that and just have you know audio files

out there with Golden Ears or otherwise

bring them in but run a completely blind

test control test and repeat it many

times don't just do it once or twice and

start with that no uh cable company in

the world has ever run this kind of test

simple enough how long does it take it

takes less time to do this than to make

that 40 minute video uh bring people in

you know and just run these things have

them have a scorecard where they write

down which cables which and just do 10

times you know two or three minutes each

40 minutes you're done show that proof

to us don't make 40 minute videos just

you know talking about stuff that

doesn't exist

okay

um he then makes a claim that you can't

run double blind tests because the

person switching the cables knows that

he's switching the cables to me it's

just fine okay we'll make an exception

for you

um make sure whoever's doing that cable

switching is not an audio file is not

involved in any of this claims you get a

random person off the street come in

maybe somebody works in your Warehouse

or whatever and he does we tell them

what to do and how he's supposed to do

it so that is behind the curtain and you

know nobody can tell and I trust that as

a first order approximation of the

testing that we want to do we could of

course use a relay based switching and

but I'm sure he's going to say the relay

changes the sound so really it's not

good and at any rate It's Tricky relays

make a different sound when they close

ones versus when they open so if you're

smart you can actually listen for that

so yeah just use a person to switch

cables and you know get it done that's

the video I like to see him do not this

kind of video

so to summarize this and keeping my

video shorter than this uh the testing I

did was extremely comprehensive he

covered both measurements and also the

sound with music with three tracks with

with the tracks actually provided to

people to perform control double blind

tests you know he said oh people listen

to my difference the two sample files

and say they sounded different yeah I'm

sure you you I actually said that in the

review that some people listen to A and

B and say they sound different but put

them behind a double blind comparator

and then run 10 times let's see if you

can still hear the difference that's

what he didn't do that's what those

listeners have not done

um and uh you know I started with null

test a whole bunch of his comments on

his video people back and I'm saying oh

measurements are good measurements are

no good okay well I'll run anal test it

wasn't based on measurements

measurements were you know supporting

casts on this thing there are no proof

points in the 40 minutes whatsoever

there's just nothing there from the

company to pack anything uh typically

when I do these tests proper companies

replicate the measurements replicated

testing and bring a different set of

test results when they do then I'll work

with them find out if I made a mistake

they made a mistake here's just making

up stuff of how about this how about

that see what sticks on this thing no

measurements are provided to counter

mine no null tests are provided

whatsoever and key thing is this every

time somebody talks to you about this

and that technical

topic about cables power cables or power

products remind them look my coupon is

not amplifying AC

is converted to DC as a means to make

Electronics do what they do employ if

you get a crappy audio product that lets

noise in for some reason this power

cable isn't going to help you because it

does no filtering whatsoever of anything

coming in and you know if it did you're

going to spend 400 to improve some

crappy piece of electronics

Chuck the crappy piece of electronics

buy hundreds of products that I

recommend that are not crappy and don't

need any special cable in to perform

what they do and by the way none of my

expensive instruments come with any kind

of fancy cables or benefit from this

cable you think audio Precision with 28

000 instrument couldn't afford to put a

hundred dollar Cable in there to make

things better if it reduced noise or

just key metric for an analyzer they

will so and then finally let's say all

these arguments are true this cable is

crap excuse my friend says crap you

can't plug it in it destroys your

Outlets it can be unsafe it is not

doesn't have safety regulations I don't

care what else it does it is not a

proper cable to use

okay hopefully this was part of titanium

somewhat useful for you I really wanted

to do more technical topics reviews but

here I am okay see you in a future video

bye-bye