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Yet Another Post About Power Conditioners!

OK, OK, so I know there are eleventy billion posts about what power conditioners are better than others. I've read them all...yes, all eleventy billion! But, I am still wondering which one I should chose.

Here's the backdrop: I have four dedicated, 20-amp outlets. There's a bunch of noise on them. So bad I can hear a local hip hop station clearly playing through my Greenwave Dirty Noise Filter w/speaker. I use an assortment of very high-end, and expensive power cables,. I use very expensive, high-end outlets. My system consists of a Mobile Fidelity Ultradeck, a PS Audio GCHP phone stage, an AudioLab 6000CDT transport, a Burson Audio 3x Reference headphone amp, and Focal Clear headphones. Everything is connected with really good interconnects, most of which are balanced. Having downsized from a much larger, much more power system, these nuggets suit my current needs just fine.

Still that AC noise. Given the size of my system, it's silly to spend mega-bucks on a regenerator, or the expensive balanced isolation transformer PCs. Based on my research, I've narrowed my choices to these in the $1500 and under price range:

Furman Elite 15 or 20 PFi (used)
AudioQuest Niagara 1200
PS Audio Dectect
Core Power Equi=Core 1000 or 1800 (no return policy, ugh)
Shunyata Hydra 8 (used)
Decware ZLC (10-12 month wait, ugh)
NuPrime Pure AC-4
Toroid BTE500E or 1000E Balanced Transformer
Tripplite ISO500 or 500HG Isolation Transformer
Torus TOT Mini Balanced Transformer

Yes, that's an extensive list, but my search reveals these are the top choices by many folks, as well as a few, little-known contenders.

If you have actual experience with any of these--and have compared them to other PCs, your opinion or recommendations would be appreciated greatly. You're welcome to suggest others, too, if you've done hands-on comparisons.


output555
jea48
4,313 posts
 
@thyce

First we don’t know how the electrician, 25 years ago, installed and wired the so called "dedicated" ground rod. The electrician may have installed and connected the ground rod to the existing GEC, (Grounding Electrode System), of the electrical service using a minimum #6awg copper conductor.

thyce said:
That ground rod you said is just for your audio equipment absolutely must not be connected to anything but the houses main ground rod, and only if it is 6 ft or closer to the main grounding rod.
25 years ago, I would agree. 25 years ago the new so called "dedicated" ground rod should have been connected to the existing GES with a minimum #6awg copper conductor.

and only if it is 6 ft or closer to the main grounding rod.
That is the minimum distance apart... There is not any maximum distance between the grounding electrodes.

FWIW:
For many resent NEC code cycles the NEC has allowed Auxiliary Grounding Electrodes.

Quote:
"250.54 Auxiliary Grounding Electrodes. One or more grounding electrodes shall be permitted to be connected to the equipment grounding conductors specified in 250.118 and shall not be required to comply with the electrode bonding requirements of 250.50 or 250.53(C) or the resistance requirements of 250.53(A)(2) Exception, but the earth shall not be used as an effective ground-fault current path as specified in 250.4(A)(5) and 250.4(B)(4). "
End of quote.


I would not recommend an Auxiliary Grounding Electrode though. It will do nothing to improve the sound of an audio system. The earth does not possess some magical, mystical, power that sucks nasties from audio equipment. If anything an Auxiliary Grounding Electrode can cause noise on the chassis of the equipment.
Lightning loves them though...


Here is a short video about the use of an aux ground rod. When watching the video substitute the whole house generator with audio equipment of an audio system.
https://www.youtube.com/watch?v=gg4wBI7bWgI

/ / / / /

Finally this...

Grounding Myths

"Electromagnetic Compatibility Engineering" by Henry Ott

3.1.7 Grounding Myths

More myths exist relating to the field of grounding than any other area of electrical engineering. The more common of these are as follows:

1. The earth is a low-impedance path for ground current. False, the impedance of the earth is orders of magnitude greater than the impedance of a copper conductor.

2. The earth is an equipotential. False, this is clearly not true by the result of (1 above).

3. The impedance of a conductor is determined by its resistance. False, what happened to the concept of inductive reactance?

4. To operate with low noise, a circuit or system must be connected to an earth ground. False, because airplanes, satellites, cars and battery powered laptop computers all operate fine without a ground connection. As a matter of fact, an earth ground is more likely to be the cause of noise problems. More electronic system noise problems are resolved by removing (or isolating) a circuit from earth ground than by connecting it to earth ground.

5. To reduce noise, an electronic system should be connected to a separate “quiet ground” by using a separate, isolated ground rod. False, in addition to being untrue, this approach is dangerous and violates the requirements of the NEC (electrical code/rules).

6. An earth ground is unidirectional, with current only flowing into the ground. False, because current must flow in loops, any current that flows into the ground must also flow out of the ground somewhere else.

7. An isolated AC power receptacle is not grounded. False, the term “isolated” refers only to the method by which a receptacle is grounded, not if it is grounded.

8. A system designer can name ground conductors by the type of the current that they should carry (i.e., signal, power, lightning, digital, analog, quiet, noisy, etc.), and the electrons will comply and only flow in the appropriately designated conductors. Obviously false."

Henry W. Ott

Who is Henry Ott?
http://www.hottconsultants.com/bio.html

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j-wall's avatar
j-wall
353 posts
 
I'm with @dvddesigner knowing Caelin's background and what he does for the science community as well as their openness to discuss their products should give you comfort. They are far from snake oil and should be the last one on the list of "snake oil" brands. Snake Oil is the equivalent phrasing of fake news and should both be removed from modern vocabulary. 

Anyways, I run a P10 and once a year I unplug it and plug everything into the wall, then I plug everything back into the P10, the P10 always stays year after year. PS Audio makes great regenerators, buy used. 
bemused
118 posts
 
@output555 :
It is not anything mystical, black magic, etc. Nor is it irrational.
Simple, albeit theoretical, valid ideas presenting a new approach to audio systems.
Take a few minutes to read and absorb the material.
Look at the simple animation video and then think about audio.
Then think about the terms Fourier, harmonic series, resonance.
I acknowledge that ADD-Powr might not be what you are looking for.
It is not a power conditioner per se - it does not address AC noise or e-m interference. It is not a filter nor an isolation transformer.

ADD-Powr only addresses the lack of harmonic content in the AC generation and delivery from the power breaker to your audio system.
From what I read at the web site, it is pretty powerful and works very, very well. It has been used by mastering studios and even in live concert venues to great success.

What makes them special is that it completely raises the level of sonic performance in my audio system and thereby raises my enjoyment by 100%.
I have compared them to the PS Audio P-3. It does lower the AC noise floor for quieter listening, But lacks any of the positives of my Sorcer and Wizard.
Together, installed in parallel from the 110 vac, is quite a good thing!

output555 OP
120 posts
 
To j-wall: Yeah, Shunyata seems to get universal love. I've decided the Hydra is older tech, going back 20 years, so I'm looking for something newer used.

I like PS Audio and Paul, a lot. There seem to fans of their regenerators and detractors. The Power Plant Premier seems abundant on the used market.
output555 OP
120 posts
 
To bemused: I did look at their products and did some research on the tech. The science may be good, and the results enjoyable, but if it doesn't address EMI and RFI, I'm not going to be satisfied.
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