Author Topic: EEVblog #671 - White Van Speaker Scam Teardown  (Read 50275 times)

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Online wraper

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #125 on: November 17, 2014, 04:31:53 am »
Doesn't disable
Yes it does, you just did not found how. In android as well as on apple devices it is not obvious at all. You should dig somewhere deep in the settings IIRC.
 

Offline nitro2k01

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #126 on: November 17, 2014, 04:43:43 am »
Touch devices are great for playing Angry Birds. And Flappy Bird. Generally, games with birds. Typing and other serious stuff, not so much.
Whoa! How the hell did Dave know that Bob is my uncle? Amazing!
 

Offline timb

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #127 on: November 17, 2014, 05:20:02 am »

Dave you may not be aware of it but your language in the video is certainly not suitable for young adults or children wanting to learn about electronics.Regards Wayne
"Young Adults"  !!!

http://en.wikipedia.org/wiki/Young_adult_%28psychology%29[/url

Don't want to permanently scar those poor 20 to 40 year olds!

Remember kids... if you hear someone say "SHIT" you might become a serial killer!
oy I'm 12 and I'm sure I'm not the only one

You're 12? I think I see the problem here, you must be looking for the "White Van Free Candy Scam" thread.


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Any sufficiently advanced technology is indistinguishable from magic; e.g., Cheez Whiz, Hot Dogs and RF.
 

Offline TheBay

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #128 on: November 17, 2014, 07:12:28 am »
I would never fall for a White Van Scam. Would love to encounter one for giggles though. However I fell for something worse, I have joined a cult. Naim audio lol
 

Offline Arlen moulton

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #129 on: November 17, 2014, 07:35:57 am »
Hey timb I don't even like stupid candy anyway the next person to say anything negative about me or vintage radios will be seriously sorry they didn't because I think that radios are gold
 

Offline c4757p

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #130 on: November 17, 2014, 07:43:18 am »
Yeah well maybe I don't like to hear that sort of language any way this is not related to scam speakers

If I complained about everything I didn't like to see, hear or smell, you all would never hear the end of it. Fortunately for you, my eyes, ears and nose are for observing the world around me - they're inputs, not outputs, so I can't control what enters them.

Besides, I've always figured that if people are going to get hung up on the way something is being said, rather than what is being said, it was probably just going in one ear and out the other anyway. It'd serve you well to listen to the content and not the presentation.
No longer active here - try the IRC channel if you just can't be without me :)
 

Offline SeanB

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #131 on: November 17, 2014, 07:49:10 am »
My newest radio is about 20 years old.............
 

Offline Arlen moulton

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #132 on: November 17, 2014, 07:58:06 am »
My newest is 30and my oldest is81
 

Offline timb

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #133 on: November 17, 2014, 08:53:36 pm »

Hey timb I don't even like stupid candy anyway the next person to say anything negative about me or vintage radios will be seriously sorry they didn't because I think that radios are gold

Good, I'll fill the van with these:



Who listens to radios any more? Other than old people who can't miss Fresh Air on NPR or Rush Limbaugh on AM Talk Radio.

I like to restore vintage MP3 players myself.


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Any sufficiently advanced technology is indistinguishable from magic; e.g., Cheez Whiz, Hot Dogs and RF.
 

Offline rolycat

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #134 on: November 17, 2014, 09:59:52 pm »
You'll never lure anyone into a white van with those nasty things. You need to use proper Smarties:



 

Offline baljemmett

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #135 on: November 18, 2014, 03:01:09 am »
You'll never lure anyone into a white van with those nasty things. You need to use proper Smarties:



Whoa - what have they done to the tube?!  Obviously I live under a rock.
 

Offline SeanB

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #136 on: November 18, 2014, 03:24:02 am »
Still in the rectangular box here, and in a few sizes of box as well. Bad thing is that every new batch is in the same size box, but the mass decreases a little each time. Beginning of the year it was 100g, now it is down to 70g in the pack. Price though has gone up 30% in the interim then per unit, even more so per mass unit though.

Gave up on chocolate, other than Lindt bars............ The 100% cocoa ones of course.
 

Offline rolycat

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #137 on: November 18, 2014, 06:05:14 am »
Whoa - what have they done to the tube?!  Obviously I live under a rock.
Apparently - they replaced the old cylindrical tubes in the UK more than ten years ago.
There is still a giant tube on sale:



Unfortunately the lid seems to be hinged - presumably to stop today's generation of kids from firing it across the classroom by whacking the empty tube.
 

Offline TheBay

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #138 on: November 18, 2014, 08:44:10 am »
Whoa - what have they done to the tube?!  Obviously I live under a rock.
Apparently - they replaced the old cylindrical tubes in the UK more than ten years ago.
There is still a giant tube on sale:



Unfortunately the lid seems to be hinged - presumably to stop today's generation of kids from firing it across the classroom by whacking the empty tube.
I had no idea they got rid of the tubes. I just asked my girlfriend about this and she confirmed it. I remember blowing down the tube and popping the top off!

They tried to ban the blue ones as kids could confuse it with tablets or something daft back in the 80s.
 

Offline Excavatoree

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #139 on: November 18, 2014, 09:01:32 am »
Sorry for the late language comment.   I know many here don't care for him or his videos, but I like Photonicinduction's warning on his videos:

"Warning:  Contains man words."
 

Offline Arlen moulton

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #140 on: November 25, 2014, 06:47:32 am »
With Marc vencent (Mv) being maligned by Dave, I felt that their chief scientist should be able to respond with a rebuttal. Therefore, on my next remote viewing (RV) experience I was able to contact Mv’s chief scientist and obtain some answers.

For security reasons, Mv’s chief scientist could not give his full name. However, he did agree to give his first and middle name, One Hung. One Hung decided that the best way to describe Mv’s technology is to start from the power supply and work our way to the power amplifiers.

Power cord: Even this item did not escape Mv’s attention to detail. Each cord length used in Mv products are tuned to the fundamental clock frequency of the internal processor. Additionally, the direction the copper is drawn to produce the wire is correctly oriented in relation to the power source.

Power transformer: What Dave does not understand is that Mv transformers are hand wound using only the highest quality oxygen free copper wire around a ferrite core specially formed in our own temperature controlled ovens. Similar to other wire used within Mv products the optimal wire direction is observed during manufacture. I mentioned that the wire used for the transformer seemed “a bit thin” for a 7.1 amplifier. One Hung response was that by using a proprietary twisting of the wire during manufacture; Mv can totally eliminate the “skin effect” of wire and instead use the whole wire for current capacity. The result being a 22 gauge wire can have the specifications of an 8 gauge wire.

Power Capacitors: I mentioned that Dave made remarks that there seemed to be “old glue” on the power supply capacitors. I made the additional comment that 3300 uF seemed a bit low to power 5 amplifiers.  One Hung explained that the “old glue” is actually a proprietary formulation that has a multiplying effect on the capacitance of an electrolytic.  Because of no NDA, he could not go into the chemical details. However, he explained that the multiplying effect is achieved at the quantum level, by reducing the gap of the electrolytic that the electric field experiences.

Extra solder on traces: One Hung appreciated Dave noticing Mv attention to detail by thickening the PCB traces with solder. One Hung added that the solder used to build up the trace thickness is specially developed to speed up the electron velocity thereby reducing the resistance / inductance.

TDA2030V: The ‘V’ is the key One Hung pointed out. These are specialty masked devices that contain a vacuum tube front end so that the Mv amplifiers can have their highly regarded warm audio feel. At this point I asked why the typical 100uF decoupling capacitors were not used near the output devices. One Hung said that the special solder used to improve electron velocity made this unnecessary. While we were on the subject of the output devices, he added that each output device insulator to the heat sink is meticulously characterized. The “pink” and “gray” insulators have slightly different thermal properties in order to allow the output devices to achieve their proper operating temperature. I next mentioned that Dave felt that the wire connecting the output devices to the output board may be “thin”. All One Hung could do is shake his head in disappointment in Dave’s lack of understanding in the finer details of high end audio amplifier design.

Sub Woofer: I could tell One Hung was especially proud of his creation and was devastated to learn that Dave poked holes in it. I could tell it was like losing a child for him and we had to stop the interview till he could compose himself. He explained that the material used to manufacture the cone is composed of many rear-earth metals and it should have been sent back to their manufacturing facilities for proper extraction.

Display: I mentioned to One Hung that one of the Forum members made a remark that the output display meters seemed “upside-down”. One Hung said it may appear this way. However, as all physics majors know, electrons can be accelerated in a magnetic field. As such, Mv takes advantage of the earth’s magnetic field and is able to improve the display response by “dropping” the electrons towards the Earth.

Three Vacuum Tubes: When I mentioned that the three vacuum tubes did not seem connected to anything he gave me a rather perplexing look.  He said “of course not” why would they be? One Hung explained that the “blue light emitters” are projected into the vacuum tube at a specific distance to excite the atoms within. As these atoms transition to a higher energy state an “audio plasma” is created and wirelessly interacts with the vacuum tube front ends within the TDA2030V, helping to produce that distinctive Mv sound.

I had so many more questions to ask to this highly regarded audio design engineer. Sadly our interview had to come to an end since OHL had to get back to his next project. I can speak for all of us audiophiles that we are anxiously awaiting Marc vincent’s next creation.
wank wank wank that isn't scientifically or electronically possible and if they really want to become any better they should try getting a scientist that doesn't lie with every word they speak
 

Offline N2IXK

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #141 on: November 25, 2014, 07:07:24 am »
wank wank wank that isn't scientifically or electronically possible and if they really want to become any better they should try getting a scientist that doesn't lie with every word they speak
Woosh! (sound of obvious joke going way over your head) :-//
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Offline Arlen moulton

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #142 on: November 25, 2014, 08:01:37 am »
Is it àn obvious joke or are facts going woosh over your head
 

Offline David_AVD

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #143 on: November 25, 2014, 08:19:04 am »
Is it àn obvious joke or are facts going woosh over your head

yes, the joke was obvious.   ;D
 

Online Richard Crowley

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #144 on: November 25, 2014, 09:43:18 am »
Is it àn obvious joke or are facts going woosh over your head
Are you trying to pull a joke on US?
Surely you can't possibly believe that is anything but a complete parody.
It is first-class wank from the first word to the last.  Well done!   :clap:
 

Offline EvilGeniusSkis

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #145 on: November 25, 2014, 03:20:33 pm »

Hey timb I don't even like stupid candy anyway the next person to say anything negative about me or vintage radios will be seriously sorry they didn't because I think that radios are gold

Good, I'll fill the van with these:




where I come from we call those rockets
Who listens to radios any more? Other than old people who can't miss Fresh Air on NPR or Rush Limbaugh on AM Talk Radio.

I like to restore vintage MP3 players myself.


Sent from my Smartphone
 


Offline kaveendra

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Re: EEVblog #671 - White Van Speaker Scam Teardown
« Reply #147 on: May 04, 2016, 02:14:54 pm »
This video is old, but topic keeps getting younger. Having watched that, I could save a friend before falling victim to such a scam, so thanks David  :-+

The recent brand is "Commercial-Theatre", and can be found in streets and parking lots of NSW these days. Search "Commercial-" on gumtree, you you will find how many people trying to re-sell the crap.

I have found there are many variations of "Commercial" brand circulating, so following list might help somebody before getting ripped off.

commercial-theatre.com
commercial-hd.com
commercial-3d.com
theatrefidelity.com
commercial-av.net

I am sure there are others, but this is what I found so far.
 


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