Shunyata Research

[ryann]

Hi Ryan,

Here are answers to your questions:

1.  I don't really mind if the lid of the Expert Pro 1000 is on or not.  Given that I will have the Denali (which has its own CCI filtering), will it still make sense to get two Sigma NR to connect the Expert Pro 1000 units to the Denali or the Sigma ER will do?  In other words, is there any discernible difference between the NR and ER if one has the Denali in place already?

Yes it makes sense to use an NR cable rather than EF to connect a component to a Denali. The filters inside the NR IEC have been measured to reduce noise by 6 to 12 dB at 1 MHz and they are bidirectional meaning that they also reduce noise leaving the PSU. Assuming you connect both Devialets to the same HC zone there will be a theoretical benefit to this. 

2.  Then between the Denali and the wall socket, the same question, is there any discernible difference to use the NR over the EF?  I recall reading over at whatbestforum a response from the guys at Shunyata that for the Denali, it makes minimal difference whether NR or EF to the wall (unlike say Hydra)

Correct. With that said I recently sent a customer both to try with a Denali and they preferred the NR version. The differences are pretty minimal though. The Sigma EF was essentially designed to connect the Denali and Triton to the wall.

3.  This may be addressed by answers to question 1, I am also planning to upgrade the power cord for my PS Audio Directstream Memory Player to the Sigma power cord.  Again, any difference between the NR or EF given that the PS Audio DMP will be connected to the Denali as well?

I would go with NR. But a Delta or Alpha cable would do the job exceptionally well too. Both use exactly the same NR filter.

4.  Last but not least, any ideas why the Sigma EF cables are not listed on the Shunyata website?

I have been badgering them about this for ages and have been assured that the details will post very soon.

Hope that helps!

Guillaume

Hi Guillaume

Thank you for all your answers which are so helpful!  Just two more questions really:
1.  From what you are saying, it seems that for my PS Audio Directstream Memory Player, you are suggesting that a Alpha NR cable would suffice (no need to go up to Sigma)?
2.  I understand from your previous posts that since the release of the UK version Denali, some of the improvements are making or have made its way into what would be the 'latest' versions of the US version Denali.  How can I ascertain or tell whether a particular Denali unit has these 'improvements' (e.g. is it from a certain production number onwards)?  I asked the dealer over here in HK and they didn't seem to know.

Thanks in advance.

Ryan