The Niagra is better in the mid freq, more musical. But in the high freq the sky is better.
The new Wild Blue Yonder is a different league. Individual focus of instruments and voices is more intimate. Blacks are better so you get a more physical stage.
There was one thing what I also notices, we played Light my fire a number of Jacintha. Now you could hear the difference in height of the percussion. Going back to the Sky it was all gone.
Later this year I will go to the Well Signature. And I will write a review about it.
I sold Nordost for over 9 years of time and sold and owned the Valhalla. When I bought the Audioquest Redwood it blew away my Nordost Valhalla in every aspect ( I oned it for 12 years of time)
Black levels are superior to Nordost. The physical 3 dimensional image is so much more stable and touchable than what is possible with Nordost.
Stage is also wider and deeper compared to Nordost. I call Nordost incomplete since I started to sell it in 2000.
Because there are a few essential parts missing for the absolute sound. In real instruments and voices are extreme small and direct to point out. Nordost is not able to achieve this.
Nordost is like a big orchestra without a conductor. There is a lot of resolution, but it misses his place were it is on a recording.
In blind tests all clients choose for Nordost loudspeakercable with Kimber interconnects instead of full Nordost.
Because I made it more complete. It made the stage wider and deeper. And instruemnts and voices were more intimate and physical touchable. Also the mid freq. became more involving.
You Always need to look further in audio instead of following what brands say ( what is often based on nothing)