A- Regarding Shunyata Sigma NR, looking at the specs.,
A1- they claim having some Noise Reducing scheme. This is actually RFI suppression capacitor place on X shape at IEC side. The CPCC (Custom Power Cord Company) power cords were the pioneer of this kind of filtering.
These Caps could be found on ebay for $1-2. Some drawback is that it could push back the noise toward the main distributer:/conditioner and eventually sharing the ground noise with other devices in network! I use some of these RFI Caps on my DIY power cords with careful measurement regarding each cord.
A2- AC plugs at these cables are Nickel (!) plated over Tellurium Copper or Copper. No need to say Nickel plating on AC plugs ($2) used on these Power cords, is one the worse plating compared to Rhodium, Silver, Gold. Perhaps they are saving money.
----> at $3000 for PC, they could use at least some good AC plugs!
Shunyata uses a lot of none-sense abbreviations/words in their product's specs in order to foll people. One concrete example is their Hydra PC which has nothing but a couple of RFI capacitors and some Levitan outlets:
http://www.10audio.com/diy_power_conditioner.htm
B- Audioquest Power cords are usually very good for their price. I use a Audioquest NRG-2 (for Einstein The Turtable Choice phono preamp) where I cut the AC plugs and changed them with Furutech Fi-25 and Fi-15plus. Audioquest cables uses Solid Core Pure Copper as conductors which is fantastic. In my testing bench and system, AQ power cords (NRG-100, 1000) perform much better than High Fidelity CT-1 power cords (with their BS technology which makes no-sens for any engineer/physicist!!!) , Dynamic Design Challenger, Transparent Audion XL and ...
I think new AQ power cords would be a very good choice for high current Amps.
As for Audioquest AC plugs, on their early NRG-100 PCs, they were using some Oyaide Ac plugs. Now they use some other vendor to make them pure copper connector with direct Silver (NRG-1000) or Gold (NRG-500) plating. I use a couple of their 20AMP NRG-1000 plug which is phenomenal.
hope that would help...
cheers
A1- they claim having some Noise Reducing scheme. This is actually RFI suppression capacitor place on X shape at IEC side. The CPCC (Custom Power Cord Company) power cords were the pioneer of this kind of filtering.
These Caps could be found on ebay for $1-2. Some drawback is that it could push back the noise toward the main distributer:/conditioner and eventually sharing the ground noise with other devices in network! I use some of these RFI Caps on my DIY power cords with careful measurement regarding each cord.
A2- AC plugs at these cables are Nickel (!) plated over Tellurium Copper or Copper. No need to say Nickel plating on AC plugs ($2) used on these Power cords, is one the worse plating compared to Rhodium, Silver, Gold. Perhaps they are saving money.
----> at $3000 for PC, they could use at least some good AC plugs!
Shunyata uses a lot of none-sense abbreviations/words in their product's specs in order to foll people. One concrete example is their Hydra PC which has nothing but a couple of RFI capacitors and some Levitan outlets:
http://www.10audio.com/diy_power_conditioner.htm
B- Audioquest Power cords are usually very good for their price. I use a Audioquest NRG-2 (for Einstein The Turtable Choice phono preamp) where I cut the AC plugs and changed them with Furutech Fi-25 and Fi-15plus. Audioquest cables uses Solid Core Pure Copper as conductors which is fantastic. In my testing bench and system, AQ power cords (NRG-100, 1000) perform much better than High Fidelity CT-1 power cords (with their BS technology which makes no-sens for any engineer/physicist!!!) , Dynamic Design Challenger, Transparent Audion XL and ...
I think new AQ power cords would be a very good choice for high current Amps.
As for Audioquest AC plugs, on their early NRG-100 PCs, they were using some Oyaide Ac plugs. Now they use some other vendor to make them pure copper connector with direct Silver (NRG-1000) or Gold (NRG-500) plating. I use a couple of their 20AMP NRG-1000 plug which is phenomenal.
hope that would help...
cheers