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  1. #51
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    I don't believe they did so. I know only that the system that they set up for their own testing, which I was privy to a few weeks back, was cordoned off to keep out the "riffraff", so to speak. It was a nice test environment using some high end gear fed by a Roon Nucleus. The only thing I was certain of was that they believed strongly that the Spectral mono blocks were off limits for Altaira. I don't think they had any idea that trying to bring in the preamp would be problematic. That's why testing is so, so important in this arena. At least we discovered this particular situation so other Spectral customers won't need to. Or if they dare try, they'll at the very least, take caution.
    Steve Schaffer
    Wilson Alexia 2, Spectral preamp/amps, dCS Vivaldi stack, Roon Nucleus, Shunyata Everest, Shunyata v2 interconnects and power cables, and Spectral-MIT speaker and power cables, Transparent XL clock cables, Cybershaft master clock, EtherREGEN, Shunyata Sigma v2 Clock 75 cables for switch and clock

  2. #52

    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by stevebythebay View Post
    The only thing I was certain of was that they believed strongly that the Spectral mono blocks were off limits for Altaira. I don't think they had any idea that trying to bring in the preamp would be problematic.
    Thanks. The amps have a couple of internal grounds, so this is not surprising. Spectral have been working on their own ground approach for over a decade now - or so I am told
    Analog: Ortofon Verismo, VPI Aries 3, custom isolation/Magnetically stabilized JMW 10.5i/Ortofon A90/Modded & shielded Pass XP-25 Digital: Spectral 3000SV Amplification: Spectral DMC-30SV/DMA-500AR Speakers: Heavily modded MartinLogan (custom Mundorf xover, cabling, woofers; structural mods) Cabling: Shielded MIT Oracle 50ic,MA-X/Oracle 90.1, Shunyata Alpha v2 Power: Shunyata Everest; Venom, Delta, Sigma v2 XC and NR cords; PS10; Typhon

  3. #53
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by ack View Post
    Thanks. The amps have a couple of internal grounds, so this is not surprising. Spectral have been working on their own ground approach for over a decade now - or so I am told
    Guess you've got an insider or two at Spectral. Or you've peeked inside the amps. Anyway, that's consistent with its behavior. I've typically found that when components are internally grounded, they do not use 3 prong connections to the wall receptacle at all. But then this may simply be done for absolute safety. Yet it usually creates problems - in the form of the rather nasty hum we get. Yet these are, after all, very high bandwidth devices, probably capable of reproducing the original Big Bang given the right atmospherics 😂
    Steve Schaffer
    Wilson Alexia 2, Spectral preamp/amps, dCS Vivaldi stack, Roon Nucleus, Shunyata Everest, Shunyata v2 interconnects and power cables, and Spectral-MIT speaker and power cables, Transparent XL clock cables, Cybershaft master clock, EtherREGEN, Shunyata Sigma v2 Clock 75 cables for switch and clock

  4. #54
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Here's what my dealer has told me: The grounding system in the 500 Anniversary mono blocks is VERY specific. There are several ways to implement this circuit if it is required. You are currently hooked up for optimum grounding as your system, when installed, did not exhibit any grounding issues.
    Steve Schaffer
    Wilson Alexia 2, Spectral preamp/amps, dCS Vivaldi stack, Roon Nucleus, Shunyata Everest, Shunyata v2 interconnects and power cables, and Spectral-MIT speaker and power cables, Transparent XL clock cables, Cybershaft master clock, EtherREGEN, Shunyata Sigma v2 Clock 75 cables for switch and clock

  5. #55

    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    The bright side is that 2 out of 3 Spectral dealers in the US are also Shunyata dealers. So, I guess they won't be pairing Spectral + Shunyata. At least this grounding system.

    It's a shame MIT doesn't have a more competitive Power Product. That plus the recently released 2C3D power cables might be more ideal for Spectral's system approach.

    Even the Spectral manuals recommend (but don’t require) MIT power products.

    Anyways, will be interesting how this Altaira competes with other grounding solutions.

  6. #56
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    My Systems: http://www.audioshark.org/showthread...481#post158481

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    Dealer for: Aqua Hi-Fi, Aurender, AudioQuest Cables & Power Products, Avantgarde Acoustics, Avid HiFi, Block Audio (distributor), Boulder Amplifiers, Bowers & Wilkins (B&W), Bryston, Clarisys Audio Loudspeakers (distributor), Classe’ Audio, Degritter Record Cleaning Machines, Enleum (Bakoon), Esoteric, Finite Elemente, FirstWatt, Focal Loudspeakers and Headphones, Franco Serblin Loudspeakers, Furutech, Fyne Audio Loudspeakers, GigaFoil, Harbeth Loudspeakers, Hegel, HiFi Man, HiFi Rose, Innuos, ISO Acoustics, Keces Power Supplies, Kharma Loudspeakers and Electronics, Koetsu Cartridges, Kuzma Turntables, Lumin, Luxman, Magico Loudspeakers, MBL Speakers & Electronics, MSB Technologies, MySonicLabs Phono Cartridges, Naim Audio, Nordost Cables, Ortofon, Pass Labs, Quadraspire, Rega Turntables and Electronics, Shunyata Research, SimAudio, STAX, Stein Music Products, Stillpoints, VAC, Vicoustics, Viva Audio, VPI Industries, WireWorld Cables.

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  7. #57
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Mike, are top Luxman self grounding gear (e.g., D-10X, M-10X) that don't have power cord ground pins able to take advantage of this technology?

  8. #58
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by GSOphile View Post
    Mike, are top Luxman self grounding gear (e.g., D-10X, M-10X) that don't have power cord ground pins able to take advantage of this technology?
    Their power amps and preamps like the M-10X and C-900u have a signal ground connection binding post, but the D-10X doesn't appear to.

  9. #59
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Waiting on official word before responding.


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  10. #60
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by GSOphile View Post
    Mike, are top Luxman self grounding gear (e.g., D-10X, M-10X) that don't have power cord ground pins able to take advantage of this technology?
    “If they don’t have the IEC ground pin then they cannot be grounded by way of Altaira, at least conventionally. The continuity work sheet has this ground pin question as one of the first. So for now, Luxman is a no.”


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  11. #61
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Mike, just curious were you able to compare the sound of Everest CGS grounding post to components vs. Altaira CGS to components? I’m assuming the Altaira would be more beneficial.
    Gryphon Essence stereo amp and preamp/dac Hurricane power cords
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  12. #62
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    Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by johnthomas View Post
    Mike, just curious were you able to compare the sound of Everest CGS grounding post to components vs. Altaira CGS to components? I’m assuming the Altaira would be more beneficial.
    No. We asked this question and Caelin indicated the use of the Altaira would yield superior results due to the individual isolation, etc. We’ve been using Altaira since February and every time we A/B with it in and out of the system, we are shaking our heads. One experiment we want to try is tapping into the ground lug on the Fyne Audio speakers.

    More…

    “Big differences in filtering and isolation between grounded devices. The Everest has one GP-NR for all ground posts, Altairas have one for each ground post.”


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  13. #63
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Mike View Post
    No. We asked this question and Caelin indicated the use of the Altaira would yield superior results due to the individual isolation, etc. We’ve been using Altaira since February and every time we A/B with it in and out of the system, we are shaking our heads. One experiment we want to try is tapping into the ground lug on the Fyne Audio speakers.

    More…

    “Big differences in filtering and isolation between grounded devices. The Everest has one GP-NR for all ground posts, Altairas have one for each ground post.”


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    Keep us informed on how the Fyne test goes. Very interested to hear the results.
    Morgan

    NEW SYSTEM UNDER CONSTRUCTION

  14. #64
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Mike View Post
    ...We’ve been using Altaira since February and every time we A/B with it in and out of the system, we are shaking our heads...
    The A/B referred to was A = Altaira and B = nothing, or B = Everest GP-NR?
    Speakers: Magico M3, ACC, S-SUB | Electronics: Esoteric Grandioso stack | Amplification: Halcro |
    Analog cables: Crystal Cable | Digital cables: Shunyata Sigma | Rack: YG Acoustics Rack 1.4
    and Rack 1.1 amp stands (pair) | Source: Kaleidescape Premiere | Power: Shunyata Everest and Denali

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  15. #65
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by brodricj View Post
    The A/B referred to was A = Altaira and B = nothing, or B = Everest GP-NR?
    No. We don’t ground to the Everest now that we have Altaira. We compare with Altaira Vs no grounding.


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  16. #66
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    But the wiring diagram in the Altaira documentation shows it being grounded to the power distributor.
    Speakers: Magico M3, ACC, S-SUB | Electronics: Esoteric Grandioso stack | Amplification: Halcro |
    Analog cables: Crystal Cable | Digital cables: Shunyata Sigma | Rack: YG Acoustics Rack 1.4
    and Rack 1.1 amp stands (pair) | Source: Kaleidescape Premiere | Power: Shunyata Everest and Denali

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  17. #67
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by brodricj View Post
    But the wiring diagram in the Altaira documentation shows it being grounded to the power distributor.
    That we do, but we don’t skip the Altaira and just ground to the Everest.


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  18. #68
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    So in practice you have found that Altaira not connected to Everest sounds better than connected to Everest GP-NR? If so that would seem to fly in the face of the wiring diagram.
    Speakers: Magico M3, ACC, S-SUB | Electronics: Esoteric Grandioso stack | Amplification: Halcro |
    Analog cables: Crystal Cable | Digital cables: Shunyata Sigma | Rack: YG Acoustics Rack 1.4
    and Rack 1.1 amp stands (pair) | Source: Kaleidescape Premiere | Power: Shunyata Everest and Denali

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  19. #69
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by brodricj View Post
    So in practice you have found that Altaira not connected to Everest sounds better than connected to Everest GP-NR? If so that would seem to fly in the face of the wiring diagram.
    You’re so confused.

    We always ground Altaira to Everest. What I was saying was we never did equipment to Everest without Altaira in the middle.


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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Mike View Post
    “If they don’t have the IEC ground pin then they cannot be grounded by way of Altaira, at least conventionally. The continuity work sheet has this ground pin question as one of the first. So for now, Luxman is a no.”


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    So this is true even though the M-10X does have a signal ground post? Interesting.

  21. #71
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    So the short story is: signal grounds do not get connected to Everest. Component signal grounds get connected to Altaira, and Altaira gets connected to Everest.
    Speakers: Magico M3, ACC, S-SUB | Electronics: Esoteric Grandioso stack | Amplification: Halcro |
    Analog cables: Crystal Cable | Digital cables: Shunyata Sigma | Rack: YG Acoustics Rack 1.4
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  22. #72
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    Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by brodricj View Post
    So the short story is: signal grounds do not get connected to Everest. Component signal grounds get connected to Altaira, and Altaira gets connected to Everest.
    Best to read the manual.

    So there is no confusion, the above is incorrect.

    In just a simple, single Altaira system, Shunyata recommends the chassis unit first for these single hub systems, regardless of the types of electronics.

    Components to Chassis Altaira Hub. Chassis Altaira Hub to power conditioner ground.


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  23. #73
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    This statement "signal grounds do not get connected to Everest. Component signal grounds get connected to Altaira, and Altaira gets connected to Everest."

    As shown is not incorrect.

    It should however read:

    "signal grounds do not get connected to Everest. Component signal grounds get connected to Altaira SG version, and Altaira gets connected to Everest through lug #7 which is labeled 'CGC' ".

    This configuration is shown in the diagram:



    Screenshot_20221031-130510_Photos.jpg

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  24. #74
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Hi Mike,

    Just watched your awesome interview with Caelin on What's Best Forum. Great job by all parties! Thank you for doing this.
    Amps: Devialet E440's (L/R), Classe Sigma Amp5 (C/LR/RR), NAD M17 V2 SSP
    Sources: Innuos Zenith Mk III (Roon Core), Paul Pang Enet Switch w/ LPSU, Oppo BDP-103D
    Speakers: Magnepan 3.7i, Magnepan CCR/DWM, Magnepan 1.7i (Rears), REL S5 w/ Longbow (w/ ifi iPowerX)
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by BobK View Post
    Hi Mike,

    Just watched your awesome interview with Caelin on What's Best Forum. Great job by all parties! Thank you for doing this.
    Thank you. Let me know if that’s something you want to discuss further.


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  26. #76
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Mike View Post
    Thank you. Let me know if that’s something you want to discuss further.


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    Of course, we will...I see a couple of Signal Grounds in my future!
    Amps: Devialet E440's (L/R), Classe Sigma Amp5 (C/LR/RR), NAD M17 V2 SSP
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  27. #77
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    So, I've had the Altaira CG at home for a month or thereabouts. It's been an eye opener in many respects. Did find benefit in using the Uptone Audio etherREGEN's dedicated ground to the Altaira, more than anything else - initially. I'd also used BNC tails with a dCS Vivaldi APEX DAC and Upsampler and found these of less clear benefit. Tried to do the same with the dCS Clock, but this was not at all helpful, and seemed to take me a step back. No clear idea as to why. So, I then decided to give a try to my Cybershaft clock which is acting as "master" for both my dCS and etherREGEN. That required changing my Cybershaft's "isolated" (floated) ground to grounded via switches for each of the clock outputs and wiring from the dedicated ground screw to the Altaira. That initially seemed to provide a better result.

    Although the preferred approach is to first use a dedicated ground, then, if no dedicated ground, to use chassis grounding, and finally signal grounding if no continuity exists for chassis grounding. Through my own experience, the exterior silver chassis screws were found to be of a design which would not support the spade lugs (deeply recessed and no bite for the spades). That's why the BNC tails were used.

    However, after Grant returned from his recent trip overseas, he contacted me, and suggested I use the smaller black screws on the back of the dCS Clock and see if that would work. Though he hadn't tested as yet on his unit, since he didn't have the smaller spade lugs, he ran the continuity test which proved, as expected, a better level of performance in grounding. I happened to have received a few of the smaller spade lugs, originally in hopes these would fit better on the two dedicated ground posts I'd been testing. Sure enough a smaller spade filled the bill on the dCS Clock. And I no longer found a problem with using the Altaira with the dCS Clock. However, I now noticed that the soundstage had shrunk a bit and I was getting less focus and, oddly, more tweeter hiss. Now confused and downcast, as you might imagine.

    Since I was going to return my loaner cable I simply removed it from the Cybershaft and let this clock revert to Isolated (ground lifted) mode. And when I turned everything on again I was very surprised to hear a much better system than ever. I went ahead and removed the BNC tails and wired the spades to the black chassis screws on the back of the Vivaldi DAC and Upsampler. And things jumped up another level. All the odd things that happened with the Cybershaft had disappeared and all the hoped for benefits of the Altaira came to fruition.

    So, lesson learned: assume nothing when on the hunt for eradicating "ground gremlins"...
    Steve Schaffer
    Wilson Alexia 2, Spectral preamp/amps, dCS Vivaldi stack, Roon Nucleus, Shunyata Everest, Shunyata v2 interconnects and power cables, and Spectral-MIT speaker and power cables, Transparent XL clock cables, Cybershaft master clock, EtherREGEN, Shunyata Sigma v2 Clock 75 cables for switch and clock

  28. #78
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    So you eventually solved a problem you didn't know existed, by first creating a bigger problem?
    Speakers: Magico M3, ACC, S-SUB | Electronics: Esoteric Grandioso stack | Amplification: Halcro |
    Analog cables: Crystal Cable | Digital cables: Shunyata Sigma | Rack: YG Acoustics Rack 1.4
    and Rack 1.1 amp stands (pair) | Source: Kaleidescape Premiere | Power: Shunyata Everest and Denali

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  29. #79
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Sorta'.

    I'd say I didn't know why the dCS Clock was adversely affected by connecting to the Altaira. That simply led to seeing if the Cybershaft would work with the Altaira. Clearly that didn't play out as hoped. It wasn't until Grant's recommendation to try chassis connecting the dCS Clock to the Altaira that the situation improved, leading to additional chassis connections to the other dCS components and finally the serendipity of removing the Cybershaft from the Altaira that everything improved to where it is today.
    Steve Schaffer
    Wilson Alexia 2, Spectral preamp/amps, dCS Vivaldi stack, Roon Nucleus, Shunyata Everest, Shunyata v2 interconnects and power cables, and Spectral-MIT speaker and power cables, Transparent XL clock cables, Cybershaft master clock, EtherREGEN, Shunyata Sigma v2 Clock 75 cables for switch and clock

  30. #80
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Damnit! You can’t un-hear the sonic benefits the Altaira make - even over the CGS capabilities of an Everest.

    My order is placed.

  31. #81
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by crwilli View Post
    Damnit! You can’t un-hear the sonic benefits the Altaira make - even over the CGS capabilities of an Everest.

    My order is placed.
    Woot!


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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by crwilli View Post
    Damnit! You can’t un-hear the sonic benefits the Altaira make - even over the CGS capabilities of an Everest.

    My order is placed.
    Ok, I’m going to have to try it. I hope my dealer has one I can borrow.
    _______________

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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Ritmo View Post
    Ok, I’m going to have to try it. I hope my dealer has one I can borrow.
    lol, i always look very close what you buy because i am sure you are the one to get the deepest recommendations from mike.

  34. #84
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by u-sound View Post
    lol, i always look very close what you buy because i am sure you are the one to get the deepest recommendations from mike.
    Haha! Thanks but Mike treats all his customers with white gloves.
    _______________

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  35. #85
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    sure, i just think its double safe

  36. #86

    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    No more rack space, guys. La La La La Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!


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  37. #87
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by kzhtoo View Post
    No more rack space, guys. La La La La Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!


    Sent from my iPhone using Tapatalk
    It’s meant to go ON TOP of an existing component (Preamp/DAC). I had this discussion with Caelin. Mine will go on top of my Esoteric or Aurender.


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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by kzhtoo View Post
    No more rack space, guys. La La La La Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!


    Sent from my iPhone using Tapatalk
    That was a good try! Did it work? LOL
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  39. #89
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Mike View Post
    ...Mine will go on top of my Esoteric or Aurender.
    Esoteric make a big deal about the new floating top design of the current generation Grandioso. Sitting stuff on top of the floating top kind-a defeats the purpose of the floating top.
    Speakers: Magico M3, ACC, S-SUB | Electronics: Esoteric Grandioso stack | Amplification: Halcro |
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    On sale: Everything!
    On order: Esoteric Grandioso C1X

  40. #90
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by brodricj View Post
    Esoteric make a big deal about the new floating top design of the current generation Grandioso. Sitting stuff on top of the floating top kind-a defeats the purpose of the floating top.
    True. I’ll likely do the top of the Aurender anyway.


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  41. #91
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Ritmo View Post
    Haha! Thanks but Mike treats all his customers with white gloves.
    Once you experience Altaira, there is no going back...

  42. #92
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by kzhtoo View Post
    No more rack space, guys. La La La La Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!


    Sent from my iPhone using Tapatalk
    Rack space?

    "We don't need no stinkin' rack space...."




  43. #93
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    I wonder if they will build a floor standing Altaira tower model
    Speakers: Magico M3, ACC, S-SUB | Electronics: Esoteric Grandioso stack | Amplification: Halcro |
    Analog cables: Crystal Cable | Digital cables: Shunyata Sigma | Rack: YG Acoustics Rack 1.4
    and Rack 1.1 amp stands (pair) | Source: Kaleidescape Premiere | Power: Shunyata Everest and Denali

    On sale: Everything!
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  44. #94
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Will Shunyata offer the Altaira in black? They did for the Everest eventually.

  45. #95
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by Puma Cat View Post
    Rack space?

    "We don't need no stinkin' rack space...."



    hi puma, i see you got the optional footers under the altaria.
    did you compare to stock?
    i am a big beliver in vibration control, then again i try to understand the influence on a grounding device.

    and, why is it recommended to place it on top of a device? just to safe space?

  46. #96
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by u-sound View Post
    hi puma, i see you got the optional footers under the altaria.
    did you compare to stock?
    i am a big beliver in vibration control, then again i try to understand the influence on a grounding device.

    and, why is it recommended to place it on top of a device? just to safe space?
    Yes, the SSF-38s provide improved audio performance as they have better mechanical grounding and impulse transfer speed (to pass vibration away from the Altaira chassis as quickly as possible). Vibration affects pretty much everything, including grounding devices. This is also why they improve the performance of power distributors, as well.

    The Altairas are designed to sit directly on top of another component's chassis (e.g. an amp or preamp, etc.) so as to allow the shortest possible ground cables to be used to connect to the system components (as length has a direct impact on impedance for ground cables) and also have a minimal impact on rack space that is required.

    For the little Amp Camp amps, I have them resting on the HRS footers just to raise them up a bit more, and provide better cooling for both the Altaira and the amps (the ACAs run a bit hot as they are Class A).

  47. #97
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    thx!
    so the grounding cables can be ordered shorter than standard (1,25m)?
    i remember i couldnt order a omega ethernet shortet than standard.

  48. #98
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    Quote Originally Posted by u-sound View Post
    thx!
    so the grounding cables can be ordered shorter than standard (1,25m)?
    i remember i couldnt order a omega ethernet shortet than standard.
    Yes, IIRC, they can be ordered in 0.5M lengths.

    The reason you could not order an Ethernet (or, USB) cable shorter than 1.5M is because for digital signal cables, there is a minimal length that is required minimize the impact of reflections on the cable.

    Remember, the signal is an electromagnetic wave that propogates down the cable (it is not electrons flowing through the cable like water in a hose or marbles in a tube). The Vp (propogation velocity) of the signal is frequency-dependent, and an electromagnetic "signal" wave can reach the end of the cable and "reflect back", just like water in a tub or pool. This means different frequencies propogate down and reach the end of the cable at different times. And, because the Vp is different for different frequencies, there will be a number of "back reflections" occuring at...different times†.

    And, particularly with respect to digital sources, our brains are very, very sensitive to the impact of timing. For digital audio, for example, we can actually hear the influence of timing errors in the picosecond range, which is why we need femtoclocks for components like DACs, streamers, network bridges, etc. This is why components like the Cybershaft master clocks, etc., have such a positive impact.

    The 1.5 M minimal length for Ethernet cables and USB cables was empirically determined as the shortest length that can be used to minimize the impact of signal wave "reflections" on audio quality.

    It's physics, so yeah, it's a real thing*

    *–Here is a figure showing the impact of signal/timing for Iconoclast speaker cables from Galen Garies, EE and audio cable lead engineer at Belden.



    -these timing differences can be measured using a time-domain reflectometer.

  49. #99
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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    wow, absolutely great answer, helps me understanding.
    at the time i was thinking about cutting the ethernet in 2 pieces...glad i didnt

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    Re: Shunyata Launches - ALTAIRA GROUNDING SYSTEM!!

    U-sound, some additional background info:
    Electromagnetic (EM) waves are changing electric and magnetic fields, transporting energy and momentum through space. EM waves are solutions of Maxwell's equations, which are the fundamental equations of electrodynamics. EM waves require no medium, they can propagate through empty space. Sinusoidal plane waves are one type of electromagnetic waves. Not all EM waves are sinusoidal plane waves, but all electromagnetic waves can be viewed as a linear superposition of sinusoidal plane waves traveling in arbitrary directions. A plane EM wave traveling in the x-direction is of the form

    E(x,t) = Emaxcos(kx - ωt + φ), B(x,t) = Bmaxcos(kx - ωt + φ).

    E is the electric field vector, and B is the magnetic field vector of the EM wave. For electromagnetic waves E and B are always perpendicular to each other and perpendicular to the direction of propagation. The direction of propagation is the direction of E x B.



    If, for a wave traveling in the x-direction E = Ej, then B = Bk and j x k = i. Electromagnetic waves are transverse waves.

    The wave number is k = 2π/λ, where λ is the wavelength of the wave. The frequency f of the wave is f = ω/2π, ω is the angular frequency. The speed of any periodic wave is the product of its wavelength and frequency.

    v = λf.

    The speed of any electromagnetic waves in free space is the speed of light c = 3*10^8 m/s. Electromagnetic waves can have any wavelength λ, or frequency f as long as λf = c.

    When electromagnetic waves travel through a medium, the speed of the waves in the medium is v = c/n(λfree), where n(λfree) is the index of refraction of the medium. The index of refraction n is a properties of the medium, and it depends on the wavelength λfree of the EM wave. If the medium absorbs some of the energy transported by the wave, then n(λfree) is a complex number. For air n is nearly equal to 1 for all wavelengths. When an EM wave travels from one medium with index of refraction n1, into another medium with a different index of refraction n2, then its frequency remains the same, but, its speed (Vp) and wavelength change. For air, n is nearly equal to 1.

    We owe much of our understanding of this to two British geniuses, James Clerk Maxwell, and the (self-educated) polymath, Oliver Heaviside, who "re-worked" Maxwell's field equations, and made them usable in the real world.

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