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Enough noise reduction?

Curious at what point noise reduction could be considered "good enough".

Currently running a Denafrips Aeris ll DAC

Frequency Response: 20-70KHz -3dB

THD+N: 0.004%

S/N Ratio: 115dB

Dynamic Range: >119dB

Stereo Crosstalk: -124dB

 

Denafrips Hades preamp 

Frequency Response: 10-80kHz（-0.3dB）

THD+N: 0.00045%

S/N Ratio: 122dB

Dynamic Range: >121dB

Stereo Crosstalk: -110dB

Input Impedance: 60k Ω

Output Impedance: 200 Ω

Gain: Unity Gain 0dB

 

And Denafrips Hyperion amplifier 

Gain: 26dB

Output Power: 80w RMS per channel into 8ohms

Frequency Response: 10-80kHz（-2.2dB）

THD+N: 0.00078%

S/N Ratio: 125dB

Dynamic Range: >121dB

Stereo Crosstalk: -110dB

 

Currently all power cords are Shunyata Delta NR v1. 

So, the bug has bitten once again and I have been interested in experimenting with something different in power cords. Maybe Zavfino, Cullen or something of the sort. 

The one thing that has held me back at this point is with such low noise floors already on the components is there really any need to be concerned about giving up what additional reduction the Shunyata are providing. 

The Shunyata are very good. Just curious if there may be other brands out there on the used that may have better synergy or that I find more engaging with my set up.

 

bgpoppab
holmz's avatar
holmz
2,328 posts
 

what makes them better is the rectangular shape of The wire greatly reduces the skin effect,

@urbie 

But I thought that skin effect was mostly something affected high frequencies and the power cord is 50 or 60 Hz?
As we approach DC the entire conductor is in action… all the way down to its very core.

 

another tweak you should look at is the Townshend podiums

^This^ is happening after the electrical signal is launched into a air as an acoustical field… so is a bit outside of the electrical system noise.

urbie
275 posts
 

holmz,

all I can tell you is when I switched from the round OCC power cords to the rectangular OCC wire power cords everything got much better.

painter24's avatar
painter24
215 posts
 

@bgpoppab check out NRG Custom Cables in Canada. Hand made to order, but won't break the bank. I have the. 1CS feeding my distribution block. It gave a nice little boost to clarity/noise floor (reduction) in my set up. 

yage
400 posts
 

@holmz @erik_squires 

 

I just received a reply from Diego Estan who was recently hired to measure the equipment under review for the SoundStage Network of web sites. I asked whether or not he used special power supplies for the equipment under test. Here is his reply (edited for typos):

 

To answer your question, absolutely not. All devices under test, [other] than amplifiers and integrated amplifiers, are directly plugged into the same, standard 120V/15A circuit, as the Audio Precision analyzer. This is a typical circuit in a spare bedroom of my home and is shared with lighting, my home PC, etc. 
 
For amplifiers and integrated amplifiers, these are plugged into a dedicated 120V/20A circuit, and the minimum observed AC line voltages are provided in the report. Nothing else is plugged into this circuit other than the amplifier. There's only one 20A electrical outlet on this circuit, and it's a relatively short run to the electrical panel.  
 
I live in Canada, and electrical code dictates 14ga solid copper for 15A circuits, and 12ga solid copper for 20A circuits. 
 
I will also say that my home is relatively new (2012), and I have pretty stable power.
erik_squires
15,877 posts
 

Good info, @yage

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