Nordost released the Quantum QX2 & QX4 Power Purification Device - Page 7 - AVS Forum
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post #181 of 558 Old 06-16-2008, 06:18 PM - Thread Starter
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Originally Posted by Curt Palme View Post

Can you also get rid of the $4K power cables and just use stock computer IEC power cords and see if that makes a difference?

Oh you're killing me. Why not use lamp chord I am testing the device in its best environment that is at my disposal. Let me see if I have a stock cable in storage somewhere. I refuse to go buy one
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post #182 of 558 Old 06-16-2008, 06:48 PM
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Originally Posted by Jim HTPC View Post

I removed the RGPC from the path of the processor. I prefer the sound without the RGPC and just using the Quantum. Granted I have $4,000.00 retail worth of power cables too (2 cables) since the Quantum didn't have a power cable with it.


Why have you spent 4000$ on 2 power cables?

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post #183 of 558 Old 06-16-2008, 07:09 PM - Thread Starter
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Why have you spent 4000$ on 2 power cables?

I didn't. That's retail +/-

That's like asking why did I spend $20K on a processor? Because I liked it.
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post #184 of 558 Old 06-16-2008, 07:15 PM
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Originally Posted by Jim HTPC View Post

Oh you're killing me. Why not use lamp chord I am testing the device in its best environment that is at my disposal. Let me see if I have a stock cable in storage somewhere. I refuse to go buy one


Actually I wasn't kidding. While I don't believe for a second that your power cables change a damn thing, my thinking is more that if YOU believe they add sonic quality, why not give the QX4 a workout and throw 'adverse' (stock) conditions at it?


If the QX4 is all it's claimed to be, should the difference not be more remarkable?

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post #185 of 558 Old 06-16-2008, 08:50 PM - Thread Starter
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Originally Posted by Curt Palme View Post

Actually I wasn't kidding. While I don't believe for a second that your power cables change a damn thing, my thinking is more that if YOU believe they add sonic quality, why not give the QX4 a workout and throw 'adverse' (stock) conditions at it?


If the QX4 is all it's claimed to be, should the difference not be more remarkable?

Well if power cables are no different. Then I won't waste my time. As you have stated... there is no need for this extra step to satisfy your curiosity correct?
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post #186 of 558 Old 06-16-2008, 09:13 PM
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Originally Posted by Jim HTPC View Post

I didn't. That's retail +/-

That's like asking why did I spend $20K on a processor? Because I liked it.


The difference is, the processor CAN and DO make a difference (if that is worth 20K is another thing) but power cables are just power cables, there is NO difference between those 2K$ cables and a 2$ cable.

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post #187 of 558 Old 06-16-2008, 09:33 PM - Thread Starter
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Originally Posted by NIN74 View Post

The difference is, the processor CAN and DO make a difference (if that is worth 20K is another thing) but power cables are just power cables, there is NO difference between those 2K$ cables and a 2$ cable.

I refuse to get drawn into a cable debate. You know what... why am I wasting time with this dribble?

I'll keep my findings to myself. Might as well close the thread.
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post #188 of 558 Old 06-16-2008, 09:43 PM
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I understand that you don't want to question if what you think you hear is real or not.

Sound and video is not magic, it is pure physics. Physics that can be magical
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post #189 of 558 Old 06-16-2008, 09:50 PM
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Quote:
Originally Posted by Jim HTPC View Post

Well if power cables are no different. Then I won't waste my time. As you have stated... there is no need for this extra step to satisfy your curiosity correct?

No, I said that _I_ don't think there's a difference. What I'm saying is that IF you think cables make a difference, then you should take any other tweaks out of your test system to see how much difference the QX4 makes. You've already said that it's very subtle. Take out any other tweaks out of the system and see if the improvement becomes more noticeable.

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post #190 of 558 Old 06-16-2008, 10:14 PM
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to be honest... a debate is a thing where evidence is shown and then countered with other evidence and a reasoned process continues until some sort of middle ground is found or one side is shown to be without merit.

In these cable debates we have one side that presents "for your viewing pleasure" the laws of the physical universe... and the other side presents... Nothing. just "trust me, i know what i am hearing, i don need no stinkin testing!"

So to call it a debate is an insult to Roberts Rules.

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post #191 of 558 Old 06-17-2008, 05:01 AM
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Originally Posted by Dizzman View Post

to be honest... a debate is a thing where evidence is shown and then countered with other evidence and a reasoned process continues until some sort of middle ground is found or one side is shown to be without merit.

In these cable debates we have one side that presents "for your viewing pleasure" the laws of the physical universe... and the other side presents... Nothing. just "trust me, i know what i am hearing, i don need no stinkin testing!"

So to call it a debate is an insult to Roberts Rules.

You mean one side is debate and the other side is masterdebate?

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post #192 of 558 Old 06-17-2008, 12:43 PM
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a debate is a thing where evidence is shown and then countered with other evidence and a reasoned process continues until some sort of middle ground is found or one side is shown to be without merit.


"You cannot reason a person out of a position he did not reason himself into in the first place."
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post #193 of 558 Old 06-17-2008, 04:40 PM
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"You cannot reason a person out of a position he did not reason himself into in the first place."
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Probably one of the most unappreciated classic authors
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post #194 of 558 Old 06-17-2008, 08:31 PM
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i knew a masterbait joke had to show up. i am just dissappointed that CM did not make it.

Good job Q

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post #195 of 558 Old 06-17-2008, 08:40 PM
 
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Jim HTPC, do you know if the nordost product differs from the QRT products?
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post #196 of 558 Old 06-17-2008, 09:04 PM
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Originally Posted by Dizzman View Post

i knew a masterbait joke had to show up. i am just dissappointed that CM did not make it.

Good job Q

What can I say, it was on my mind at the time...

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post #197 of 558 Old 06-17-2008, 11:10 PM
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I'm the guy who wrote the Audio Diffmaker software mentioned a few pages back. In case anyone is going to do a before/after differencing test, please let me know (here). There is a new version that has been tested, but not polished up and posted for download yet. The lack of interest by the audio community was so incredibly underwhelming that I never got around to it and was distracted by other projects.

To check with a power amplifier in the loop, you need only make some pickup cables with series resistors to drop the voltages (there is a diagram in the Help files in Diffmaker). I can't see why speakers should be affected by a supposed AC power treatment device, unless the speakers plug into the AC power. But opinions on that will probably vary.

You will probably have problems with hum pickup, from ground loops between the computer and audio gear -- Diffmaker can't take out hum unless it is exactly the same (same phase) in both recordings. A good way to deal with that is with a battery powered laptop computer and a decent quality USB powered soundcard.

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post #198 of 558 Old 06-17-2008, 11:54 PM
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the point of the speakers was that the power amp could be affected so the signal through it could theoretically have been changed as well. the argument was to test the complete collective signal chain.

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post #199 of 558 Old 06-18-2008, 05:50 AM
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...in which case recording the voltage coming out of the power amp (into the speakers, rather than the sound from the speakers, into a microphone) would include any of those changes made by the amplifier. Just do the test with the speakers still loading the amplifier. (sorry, I should've been clearer about that).

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post #200 of 558 Old 06-24-2008, 10:27 PM
 
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I am still trying to find where QRT/nordost got the idea for their quantum resonance technology products, I have not found an exact word or phrase copy but I am getting close.

http://en.wikipedia.org/wiki/Resonan...ntum_mechanics

We can look at a definition of resonance in quantum mechanics which leads us to quantum field theory.

http://en.wikipedia.org/wiki/Quantum_field_theory

This is starting to sound more like their advertising agency.

But then we have to look at superconductivity and what they take from it.

http://en.wikipedia.org/wiki/Superconductivity

We can look at the meissner effect and how it would reduce/eliminate a magnetic field.

http://en.wikipedia.org/wiki/Particle_accelerator

We can then jump to how the QRT/nordost product could "line" up and correct the AC power. In order to do this you would have to use a beam-steering magnet found in a particle accelerator.

After this I looked up laser and laser technologies/operations to see if it had anything in common with the QRT/nordost products.

http://en.wikipedia.org/wiki/Laser

Which brought me to the use of optical cavity and cavity quantum electrodynamics.

http://en.wikipedia.org/wiki/Laser_cavity
http://en.wikipedia.org/wiki/Cavity_...lectrodynamics

This is an area where they could have copied the idea of "lining" up or focusing the AC power.

Since Electromagnetic Field Stabilizer is made up we have to do a little more searching to find out where their idea came from.
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post #201 of 558 Old 06-24-2008, 10:33 PM
 
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The only real world applications/patents that I could find that would associate with the QRT/nordost advertising is the following.

http://www.iop.org/EJ/abstract/0950-7671/38/5/315

Nuclear resonance magnetic field stabilizer.

http://www.techbriefs.com/content/view/1052/34/

One from NASA called Exploiting Quantum Resonance to Solve Combinatorial Problems. But this is all starting to run to together and I have to take a break. If QRT/nordost just used a real scientific term like quantum tunneling (like some speaker cable makers) it would have been so much easier to disprove it in one link.
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post #202 of 558 Old 06-25-2008, 05:19 AM
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There is nothing to disprove,the Quantums really work unless your blind or can't hear.
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post #203 of 558 Old 06-25-2008, 06:25 AM - Thread Starter
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Originally Posted by jiujitsu35 View Post

There is nothing to disprove,the Quantums really work unless your blind or can't hear.

Shhhhh... it's our secret.
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post #204 of 558 Old 06-25-2008, 07:38 AM
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Quote:
Originally Posted by DougWinsor View Post

If QRT/nordost just used a real scientific term like quantum tunneling (like some speaker cable makers) it would have been so much easier to disprove it in one link.

Yet you are wasting tremendous amounts of your time trying to disprove things to people who don't give a flying rats arse about what you are posting and/or whether what they believe is true or not. That is silly if you ask me...

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post #205 of 558 Old 06-25-2008, 08:10 AM
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I think we've adequately demonstrated that the explanations they offer are complete ********. I'm not sure how anyone can honestly sell them, and risk participating in that fraud. But if they do sell them, they certainly ought to stay far away from those explanations. As for whether they improve the sound at all, for any reason, well, I won't hold my breath for real proof, but I'd love to see it.

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post #206 of 558 Old 06-25-2008, 08:42 AM - Thread Starter
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I think we've adequately demonstrated that the explanations they offer are complete ********. I'm not sure how anyone can honestly sell them, and risk participating in that fraud. But if they do sell them, they certainly ought to stay far away from those explanations. As for whether they improve the sound at all, for any reason, well, I won't hold my breath for real proof, but I'd love to see it.

Do you have a dealer in your area? You could demo one, and experience it for yourself. See if the product works or not. You have nothing to lose but 30 minutes of your time.
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post #207 of 558 Old 06-25-2008, 09:04 AM
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I think it'd take a bit more than 30 minutes and a dealer who was actually willing to go through the trouble to properly blind the listening test, but that's not a bad idea.

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post #208 of 558 Old 06-25-2008, 09:21 AM
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Jim, seeing as you've done various electronic measurements, what is the power like in your home?

"I've found that when you want to know the truth about someone that someone is probably the last person you should ask." - Gregory House
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post #209 of 558 Old 06-25-2008, 09:22 AM - Thread Starter
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Quote:
Originally Posted by Michael Grant View Post

I think it'd take a bit more than 30 minutes and a dealer who was actually willing to go through the trouble to properly blind the listening test, but that's not a bad idea.

In my case it took less than 30 minutes. There is a switch on the back to assist in the demo process. My wife picked it out 3 out of 3 times without my influence. If she can hear it, then I suspect others will too. If you do demo the product, I would ignore the sales mumbo jumbo and just listen to make your own determination.
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post #210 of 558 Old 06-25-2008, 09:24 AM - Thread Starter
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Quote:
Originally Posted by Chu Gai View Post

Jim, seeing as you've done various electronic measurements, what is the power like in your home?

It's not bad now. I had some issues with too much ground to neutral voltage potential. Had to call in some favors to rectify the problem in a timely manner.
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