Shunyata Sigma Digital Power Cord Review

bonzo75

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Feb 26, 2014
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#61
Interesting question...i plugged it into a power conditioner of 'top tier repute'...not necessarily a beast but was certainly supposed to be able to handle it. I admit, it had a nice sound, even a bit cleaner...after 4 weeks, the socket in the power conditioner actually melted. i have put it straight into the wall ever since, and the dealer allowed me to trade the melted unit back in for another power conditioner which i used for the source components. Note: this was with my old Antileon amp many years ago, and i definitely have never plugged the Colosseum into anything but the wall. Today, it is plugged into a special dedicated high-voltage line with the following outlet...the powercable had to be reterminated as well:

View attachment 29072

You may recognize these from the Boulder amps which use these as standard on their 2000 and 3000 series amps.
So, you had an electrician instal a high voltage (30a) line? And that outlet on it?
 

LL21

Active Member
Dec 26, 2010
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#63
So, you had an electrician instal a high voltage (30a) line? And that outlet on it?
Yes, that is correct...it was his recommendation for the amp. They are electricians, but specialize in professional studios and home studios for recording artists.
 

bonzo75

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Feb 26, 2014
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#64
Yes, that is correct...it was his recommendation for the amp. They are electricians, but specialize in professional studios and home studios for recording artists.
Awesome. Will get contact off you sometime. I am aware of the 30a but the 30a comes through only if there is no 13/15a fuse. The boulder 2160 came through a 15a outlet
 

panoyski

New Member
Aug 4, 2017
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#65
Hello, guys. Newly accepted member here. I would like to ask your thoughts on whether to go for a Sigma Analog PC or an Anaconda IC. As you all know they're priced almost the same, and I can afford only one. The Sigma will be for my Cavalli Liquid Carbon headphone amp and the the Anaconda will be between the amp and DAC (Chord 2Qute). I know,,,, the cables' prices are more than the components' they will be connected to, but I will be gradually upgrading them to the very best that I can afford. I also wanted to have the very best cables now, as I am not planning to buy another, ever. My headphones are the HiFiMan HE1000 with stock cables.
 
Jul 18, 2014
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#66
Welcome Panoyski... I'd be going for the pc first. I put Shunyata pcs on my violectric and also a microzotl headphone amp used as pre and the impact of the power cables in this setup was by far the most significant improvement.

By comparison improving ICs can always potentially pay nice dividends but even more so once the power was sorted. If you then get some more modest but still good ICs you could then try adding entreq wraps around the signal connectors for a nice and very cost effective step up on even relatively mid tier signal cables.
 
Jul 18, 2014
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#68
How is the microzotl, any compares to more expensive pre amps?
Ked, Will avoid taking the thread too far off topic but very briefly would put it on a shortlist of great preamps @ under $8k which makes it something of a bargain. Definitely OTL characteristics in nature, definitely needs a linear PSU over the switch mode version, and theres plenty of great fun rolling into NOS with its tube types. Paired it with a few different amps but extra wonderful step up when having it in front of the Line Magnetic 219ia (which is 845/300B SET)... so possible killer SET combos as it takes out the fat but leaves all the joy. Also nice with good mosfet if you swing the SS way. Not so much (for me) with their own Microzotl amps (just too much of a OTL lean thing for the slightly more fleshy balance I enjoy).
 

panoyski

New Member
Aug 4, 2017
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#69
Welcome Panoyski... I'd be going for the pc first. I put Shunyata pcs on my violectric and also a microzotl headphone amp used as pre and the impact of the power cables in this setup was by far the most significant improvement.

By comparison improving ICs can always potentially pay nice dividends but even more so once the power was sorted. If you then get some more modest but still good ICs you could then try adding entreq wraps around the signal connectors for a nice and very cost effective step up on even relatively mid tier signal cables.

Thanks for the reply. I will then go for the PC first. Pretty excited to hear the sonic improvements once it's in the system.
 

bonzo75

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Feb 26, 2014
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#70
Ked, Will avoid taking the thread too far off topic but very briefly would put it on a shortlist of great preamps @ under $8k which makes it something of a bargain. Definitely OTL characteristics in nature, definitely needs a linear PSU over the switch mode version, and theres plenty of great fun rolling into NOS with its tube types. Paired it with a few different amps but extra wonderful step up when having it in front of the Line Magnetic 219ia (which is 845/300B SET)... so possible killer SET combos as it takes out the fat but leaves all the joy. Also nice with good mosfet if you swing the SS way. Not so much (for me) with their own Microzotl amps (just too much of a OTL lean thing for the slightly more fleshy balance I enjoy).
Cheers, good to know
 
Nov 16, 2013
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#71
Looks like there is experience here with the Sigmas and Alphas, so if I were to go for one and/or the other (piece by piece), which should I choose for the following system:

- PS Audio Powerbase
- PS Audio P5 Regenerator
- PS Audio Directstream dac
- Oppo 203 (with Vanity HD card soon)
- ATC SCM 19A speakers (powered towers)
(- IC to speakers is MG Audio Design AG2V2
- Oppo to DSD via Snake River s/pdif)

Thanks,
 
Last edited:
Feb 16, 2017
169
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#72
Received two new Sigma NR, for my Denali 6000 T and my AR Ref 5 SE. Again, congratulations Caelin.
I make a suggestion and a question.
The suggestion is the possibility of manufacturing a model 6000 in which the six outputs were CCI. In my case, four are not enough and I would not mind connecting my amplifier to a 2000T.
The question is about the possibility of commercialization of the DC Offset filter prototype, is there any news on that?