[audioguy3107]

Originally Posted by MisterBritt

I think there are two differences between the Alpha NR and the EF models. Three if you include that the NR series retails for $300 more than the EF.

1) The EF (which I take to mean Extra Flexible) brings that to the shelve

2) The NR incorporates CCI technology (which I take to mean Component to Component Interface or perhaps Component Contamination Interlock)

CCI™ filters have the unique ability to reduce component-generated power line noise without inhibiting DTCD™ (dynamic transient current delivery). This unique filter element prevents power line noise from one component contaminating the other adjacent electronic components. Shunyata Research’s **CCI™ filter modules consist of proprietary multi-stage filters that reduce power supply-generated noise without the use of heavy transformers, coils or large capacitors.

Yes, on closer examination on their site that does look to be the primary difference......wonder how big of a real world difference that would make, I mean if you're spending that much on a power cable you might as well get the max benefit even if the NR is just a bit more money. Guess you'd have to really compare in your system to know.

- Buck