always worth going back to the head fi forums incident when somebody had their audiophile power cable destroyed by their cat and basically found out that his couple of hundred bucks worth of cable was in fact about 15 dollars worth of cable... http://www.head-fi.org/t/293165/my-cat-tore-up-my-virtual-dynamics-power-3
Thats not quite right. Oppo make them in China and Lexicon assemble them in the USA and charge considerable more. Note the Cambridge Audio version is almost the same also.
According to Audioholics article:
"When we received the player the first thing we did was open it up to get a look at the inside. Imagine my surprise when I found that not only did the Lexicon share the same boards and transport as the Oppo - it was in fact AN OPPO BDP-83 PLAYER, CHASSIS AND ALL, SHOVED INSIDE AN ALUMINUM LEXICON WRAPPER. As far as we could determine, Lexicon didn't change a single thing in terms of the hardware. Heck, they didn't even lift the boards out of the chassis, opting instead to cut out the bottom of their own chassis to accommodate the venting locations, and putting a darker blue filter over the Oppo's VFD display to give it a slightly deeper hue."
Audiophools and their foo.
PC > AVI Neutron Five 2.1
Sony NWZ-A847 64GB Walkman > Westone UM3x
Do expensive mains cables improve other electronic devices such as my television or DVD player?
The picture on my TV could use some improvement.
For those of you that might be interested in the properties of shielding...this from the Okonite Cabling Company in New Jersey:-
Onkyo TX-NR818 / Tannoy Revolution DC4 (bi-amped)
AVI Laboratory Series CD Player
I'm beginning to think you are being deliberately obtuse! Nobody said that shielded cables were a black art.
It is not my intention to be anything of the sort. You keep challanging what I'm saying, so I keep trying to explain what I mean.........which is a pointless excercise, as you've already decided what's what.....and won't try it.
You said that "metal foil shunting the electromagnetic to the ground" was ludicrous"......so I posted the passage I lifted it from.
You then posted something that implied the whole passage was pseudo science and not possible, so I linked to a Wikipedia article that backed up the passage.
Any cable can act like an ariel, and with the amount of airborne noise kicking about from all the wireless devices...there can be a great deal of EMI in the airwaves. It makes sense to shield the cable from this, and the shield needs to be grounded, to let the unwanted noise drain away....otherwise it will transfer (through capacitive coupling) to the internal signal conductor, which is carrying the signal, and so adversly effect the sound.
As for the P/C, how it helps, and why it needs screening, I'll let PS Audio explain,,,,,but I know you won't believe a word of it....Oh well.....I'm now finished arguing for the moment.
"Power cables are the connections between the AC power source and your equipment. Think of these in the same way you might envision a water pipe. If you have a restricted flow water pipe, you will not be able to deliver as much water as may be required. The same is true for AC power. Great care must be taken to make sure the power delivery system to each piece of equipment in your setup is unrestricted at a minimum.
How big a problem is this? Most stock power cables have relatively small wire gauges and can restrict power demands of equipment, in particular instaneous dynamic demands that exceed the ability of the stock power cord to allow the needed power’s passge, especially to power amplifiers and video projection devices.
The quality of the connectors on power cables is yet another big factor in delivering power properly. Most connectors on off-the-shelf stock power cables are made from stamped brass. Brass has a tendency to “barnacle” or build up small protrusions that limit the conducting area of a plug’s connector thus limiting current flow. PS Audio (and other high end manufacturer’s products) take extraordinary care to use polishing and plating of non intrusive materials (such as gold, silver, nickel, rhodium) to their connectors in an effort to improve connectivity. Stay away from any products with unpolished raw brass connectors.
Shielding. Most power cables are either not shielded or are poorly shielded. Shielding is important both from incoming noise and from outgoing noise. Most equipment produces EMI on its own and without a shielded power cable these emissions radiate to other equipment.
Quality of the copper inside the cable. Most stock power cords use the lowest possible copper quality to reduce costs. Use of PCOCC and OFC copper can enhance current flow and improve sound and video.
Active cleaning. Properly engineered, ferrite (an iron based material) can reduce noise levels in the AC powerline by small amounts. PS xStream cables are the only power cables in the world with impregnated active ferrite noise reduction materials in their jacket.Some power cables use a lump or ‘slug’ of ferrite to reduce noise. While this is effective for noise reduction we have found it restricts the sound when not distributed."
"Everything has been said before, but since nobody listens we have to keep going back and beginning all over again." André Gide
At the ACME Audiophile Cable Co. board meeting to discuss their latest cables...
Synology NAS + ATV2 > ADM9RS
Don't you think people who make stuff might perhaps tend to say that their stuff works! But anyway look at it logically - what about the RFI already in the mains? Mains wiring isn't shielded and there is metres and metres of that pretty close to the equipment. Moreover the equipment itself is sitting in the same environment so that also should pick up the RFI. What's so important about the last metre or two of mains cable that you have to spend a small fortune on it? If you really want to protect your equipment from RFI you should put it in a Faraday cage and run it off batteries!
But as I said before why don't you just say that you think it works because you can hear a difference? That's fine and is evidence that it might work. What I don't understand is why you need to try to justify it! Just say you don't know why it works but that it does for you.
That is precisely all I want to do, but then people keep queuing up and challanging me to explain myself, provide proof and demand ABX tests.....and like an idiot, I try to do it.
I have heard the difference and say so (which I put as an opinion).........all I want, is for people to try it......no more and no less......I am then happy to accept what they find (either way). Simples.
They're a passing blip in the day. The best part of £300 on a mains block a tad longer lasting. Masterplug will do for me thanks.
Cheers for the tip, just ordered 1 from Argos to replace my 20 year old 4way.
If the truth can be told so as to be understood, it will be believed.
Then we are as one! You can hear a difference and I can't but in the complete absence of woofle dust.
I’ve learned so much to day, now I know what woofle dust is. Oh, do power blocks have a burn in time?
So close to a respectful disagreement...
It's often found in the tail feathers of the ouzelum bird, woofle dust that is.
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