Entreq Tellus grounding,in england

[BE718]

The only way you will get a 75 ohm impedance cable is to use BNC .. RCA.. due to construction will never be 75 ohm impedance
whether it will matter or not is another discussion

You are absolutely correct

 

[Purite Audio]

Keith I have six ground boxes to which are attached around 20 ground cables which all work together to improve the sound of my system so what you propose as something simple is simply not the case..
Along with experienced and capable professional and lay reviewers I am happy to rely on what I hear over a period of time as opposed to invariably time limited blind testing which has been shown to have its own weaknesses.
Technical measuring techniques do not feature in the cable reviews I have read. Its the ears that determine the judgement.
Now if others wish to rely upon measurement techniques and blind testing then that is their choice.In my experience however peoples final choices and decisions are determined by what they hear just as yours was earlier with the Cesaro Chopin despite its very poor measurements.
Now I look forward to reading you response to the points put to you by JK.

'Professional reviewers ' that is an oxymoron surely?
I wouldn't trust any reviewer further than I could throw him, and that would go for a large percentage of dealers.
Keith.

 

[Blizzard]

'Professional reviewers ' that is an oxymoron surely?
I wouldn't trust any reviewer further than I could throw him, and that would go for a large percentage of dealers.
Keith.

Really? This guy was so proud of his review that he didn't even mention his name:

http://www.monoandstereo.com/2015/08/mola-mola-makua-and-kaluga-review.html

You mean you're not a pillar of the tight knit dealer community?

 

[Purite Audio]

Really? This guy was so proud of his review that he didn't even mention his name:

http://www.monoandstereo.com/2015/08/mola-mola-makua-and-kaluga-review.html

You mean you're not a pillar of the tight knit dealer community?

Most dealers stock what they can sell, which is good business practise , I believe Majek wrote that Mola-Mola review?
Keith.

 

[Blizzard]

Most dealers stock what they can sell, which is good business practise , I believe Majek wrote that Mola-Mola review?
Keith.

Not sure. Someone who had a grudge against Hypex for sure. There's always a reason if you see a review like that.

 

[Purite Audio]

Not sure. Someone who had a grudge against Hypex for sure. There's always a reason if you see a review like that.

Possibly but I suspect that Majek just prefers a valve/vinyl type sound and the Molas just aren't to his taste.
I remember the very first time I heard valves, I had always used active speakers up to that point ,initially I thought they were wonderful voices had a lovely silky quality ,sound projected into the room, but there were disadvantages bass was poor , switching back to solid state, wow the resolution ( and bass) but you lose the silkiness.
If you have been listening to vinyl for many years it might be difficult to adapt to digital , valves to solid state and vice versa.
Molas are the most natural/uncoloured amplifier I have heard so far.
Keith.

 

[Geardaddy]

So in summary, Fiddle's findings point to what can be termed the occult "Spinal Tap" factor in grounding: https://www.youtube.com/watch?v=KOO5S4vxi0o

 

[Geardaddy]

It would be more interesting to look for changes in timing errors with the application of grounding and/or power conditioning: http://www.stereophile.com/rmaf2010/nordost_and_vertex_measurements/index.html#5fBjb1FJdtDCYpgG.97

amirm, you are a software guy. Thoughts on that application?

People have also pissed on the concept of power conditioning for years and we are only now beginning to recognize potential fruits: http://www.audiostream.com/content/shunyata-research-helps-save-lives#6lEm3lfokbmOd2uk.97

I personally have a soft spot for the more woo woo elements of audio. You don't know how it works (partly because of a lag in appropriate measurement tools and comprehension) but your ears tell you something may be going go. Another example is the Schumann resonance gizmos: http://www.stereotimes.com/acc011409.shtml

Like Mike L, I have heard the Tripoint grounding device twice (once in a show setting and more recently in my own listening room) and the results are not subtle. Something is indeed going on. I have seen the naked modules that Miguel uses, and they are mammoth, heavy, and beautifully fabricated. The fabrication process takes over three weeks, which is longer than a lot of the circuit board jockeys take to solder their boards together (and charge similar or even more $$$):

 

[esldude]

You won't be able to get far looking for timing changes with LP as the source.

The Vertex stuff seems never to have been updated. The results they show look to me like a classic case of timing differences. Small ones. As in you null two files, and a delay between them alters very slightly the nulling. When you see the classic 6db per octave tilt to residuals it will almost always be a phase difference due to timing between the two files being nulled.

An example many generic wires may only have a speed of propagation around 70% the speed of light. Other construction can allow more like 85-90% the speed of light. Nulling comparisons of two such cables even over a meter or two can show the kind of residuals Vertex was showing. Yet that slight delay in time is the only real difference. Meaningless in actual use.

 

[Geardaddy]

You won't be able to get far looking for timing changes with LP as the source.

The Vertex stuff seems never to have been updated. The results they show look to me like a classic case of timing differences. Small ones. As in you null two files, and a delay between them alters very slightly the nulling. When you see the classic 6db per octave tilt to residuals it will almost always be a phase difference due to timing between the two files being nulled.

An example many generic wires may only have a speed of propagation around 70% the speed of light. Other construction can allow more like 85-90% the speed of light. Nulling comparisons of two such cables even over a meter or two can show the kind of residuals Vertex was showing. Yet that slight delay in time is the only real difference. Meaningless in actual use.

I was thinking primarily of digital. Vertex has indeed failed to followed through on development, but the concept is reasonable. Measuring system jitter, etc. Minor differences in timing or phase are not necessarily minor. The speed of propagation is an interesting point and makes me wonder about the effects of some of the magnet-driven cabling (electron herding so to speak) prompted by Rick Schultz at High Fidelity: http://www.highfidelitycables.com/technology.html

 

[Blizzard]

It would be more interesting to look for changes in timing errors with the application of grounding and/or power conditioning: http://www.stereophile.com/rmaf2010/nordost_and_vertex_measurements/index.html#5fBjb1FJdtDCYpgG.97

amirm, you are a software guy. Thoughts on that application?

People have also pissed on the concept of power conditioning for years and we are only now beginning to recognize potential fruits: http://www.audiostream.com/content/shunyata-research-helps-save-lives#6lEm3lfokbmOd2uk.97

I personally have a soft spot for the more woo woo elements of audio. You don't know how it works (partly because of a lag in appropriate measurement tools and comprehension) but your ears tell you something may be going go. Another example is the Schumann resonance gizmos: http://www.stereotimes.com/acc011409.shtml

Like Mike L, I have heard the Tripoint grounding device twice (once in a show setting and more recently in my own listening room) and the results are not subtle. Something is indeed going on. I have seen the naked modules that Miguel uses, and they are mammoth, heavy, and beautifully fabricated. The fabrication process takes over three weeks, which is longer than a lot of the circuit board jockeys take to solder their boards together (and charge similar or even more $$$):

View attachment 25726

Did the gear you were using at the time of audition have SOTA ground noise isolation circuitry?

 

[bonzo75]

I have demoed most of the Vertex stuff at home. I owned their hirez power bar, but that's only coz I got a good deal. Sold it off. Now use a PP 2000 regen. The guy who bought my distribution block likes it. I tried to A/B the two multiple times but could never make out any major difference, so I gave up. Kept the regen as I have fluctuating voltage from the wall, between 237 - 253v

I didn't like their cables.

As for the isolation platforms, I found them doing something wrong to bass and details

 

[Geardaddy]

I have demoed most of the Vertex stuff at home. I owned their hirez power bar, but that's only coz I got a good deal. Sold it off. Now use a PP 2000 regen. The guy who bought my distribution block likes it. I tried to A/B the two multiple times but could never make out any major difference, so I gave up. Kept the regen as I have fluctuating voltage from the wall, between 237 - 253v

I didn't like their cables.

As for the isolation platforms, I found them doing something wrong to bass and details

So the take home message is what? Their software contribution is dubious? The PP stuff makes sense but I have had friends who bought and sold it with similar sentiments....who knows....

 

[Geardaddy]

Did the gear you were using at the time of audition have SOTA ground noise isolation circuitry?

How would said SOTA isolation circuitry be engineered? My in house demoed involved grounding a single component with a dedicated grounding post (Lampizator GG dac). Lucas is an engineer with a background in PSs, etc and used some form of star grounding.

 

[Blizzard]

How would said SOTA isolation circuitry be engineered? My in house demoed involved grounding a single component with a dedicated grounding post (Lampizator GG dac). Lucas is an engineer with a background in PSs, etc and used some form of star grounding.

I don't know the fine details, but some engineers put more effort into SOTA grounding techniques than others. I can imagine the gear from the manufacturers who put more attention into this would be less affected by these grounding devices.

 

[amirm]

It would be more interesting to look for changes in timing errors with the application of grounding and/or power conditioning: http://www.stereophile.com/rmaf2010/nordost_and_vertex_measurements/index.html#5fBjb1FJdtDCYpgG.97

amirm, you are a software guy. Thoughts on that application?

We discussed and analyzed this back in 2010 when it came out: http://www.whatsbestforum.com/showthread.php?2199-Objective-measurements-for-power-cables. There is nothing really there.

 

[Folsom]

I'm interested to learn examples of "SOTA" grounding.

 

[Blizzard]

I'm interested to learn examples of "SOTA" grounding.

I hear there's some pretty cool ground isolation tricks implemented into this piece of gear:

https://www.aavik-acoustics.com/products/aavik-c-300.html

 

[YashN]

I'm interested to learn examples of "SOTA" grounding.

Shunyata has some original grounding methods in some of their devices.

 

[YashN]

Folsom and others, in case you're interested in pursuing studying of grounding and clean power, there's a thread over at CA which is chock-full of fantastic information from the likes of Speedskater and many others, and at one point we discuss the Entreq device, which I had read a lot about on WBF thanks to SpiritOfMusic and others (and by thanks I really mean to say 'Thank you' to WBF and all these guys because without those who try these controversial solutions and provide their listening impressions, there would be no further investigation and learning):

AC Filtering, Grounding Boxes, Linear PSU and Balanced Power.

In fact, I am back at reading that very same thread because of all the info we amassed over there, some of which are my own posts for reference as I head into finishing my DIY AC Filtering box. Of course, just avoid the trollish posts to get to the gold (many great posts from members and also many links to essential papers).