Hi James!
I have the CenterStage MI1 in my system (B60).
These cables are fantastic!
I lent them from my local dealer, only to try them out. Had them in for a while and I thought that the difference would not justify the cost. So I brought them back!
BIG mistake! As I came back home and connected my old cables (T+A) - I was shocked!!! What an awful sound!! It was a difference like night and day. Really, I thought: "How's that possible??".
It seems that a "step down" in sound quality is much more recognizable than a "step up".
Next day, I went back to my dealer and bought the cables without hesitation!
My system sounds MUCH better with them (perhaps my old cables were only really bad).
Especially female voices are improved.
For example: Loreena McKennitts strong voice was sometimes unpleasant to hear in the highest highs - I always thought that this was an issue with my speakers. But with the Goertz, her voice is smooth - without loss of detail!
But not only voices - everything is better! Overall impression: The music sounds cleaner, more controlled and natural.
I tried the interconnects too, but there was no significant difference to my MITs. I think the speaker cables are those which rock!!!
Would be nice to read your impressions!