Speaker cable for Green Mountain Audio Callisto


I want to know your cables recomendation for Green Mountain Audio speakers, in my case for the Callisto.
I red that GMA use Audio Magic speaker cables. Anybody recomend them ?
What about Acoustic Zen, Analysis Plus or Crystal Cable ?
Copper or Sylver or both ?
Thanks for your replays.
elduende14
The point I was trying to make is that when you chose a speaker cable, you need to match it to your amp as much as to your speakers.
Winegasman, a clarification, three posters have not recommended $2200 VD cables, in fact no one has. Bombaywalla stated that he heard the Callistos with the Master Series and two other posters only recommended VD cables, not any specific series. There are four series of VD cables that retail for less than the Master Series, granted not with the performance of the Master series. I own VD David cables with my Callistos and they are wonderful, while not the Masters they contain much of the same technology. In fact, there are a pair of VD Master speaker cables right now on Agon for $850 that look like a steal(I have no affiliation) and while I agree with maintaining cost proportions between cables and components one may have to consider used prices to maintain a proper ratio. I agree with Jwmazur in contacting Roy and Rick Schultz, that's what I did when seeking cable advice and they both were very supportive and generous in a solution for me. So I'd say give VD cables a try, they are special with my Callistos.
Drubin has a good point as does Winegasman. I went with used Cardas speaker cable because that is what I could afford and was the best cable for the money. I would rather put my money in the Callisto, amps, and front end. I have been very happy with my combination and like most of us in the Audio "hobby", would like to experiment with others. I personally spent alot of money once on Audio Magic wire and found it not to my liking, but it may be right for you. Buying used at the right price and being able to experiment and not loose huge amounts of money when you decide to change makes this hobby alot more enjoyable. What have you used in the past?
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I love these discussions on cables and their importance. This hobby would be a lot cheaper if they weren't important. You can get good sound without paying attention to them, but most naysayers have no clue where the ceiling is with their current system if they ignore cables as a component. IMHO the Callisto is reference caliber and I found them unbelievably revelaing of cable changes at all levels, in fact more so than any speaker I have ever owned. I went through too many to list, some esoterica and some not nearly so glamorous. I did not try Roy's recommnedation of the Virtual Dynamics however.
The best in my system was Revelation Audio cryo treated silver cable. In fact I am at a point I never thought I would be where all my calbes and IC's are from Revelation. Brad's cables don't seem to follow the rules regarding silver (too much of a good thing). Everytime I dropped one in the noise floor sank and ultimate musicality improved. At the time I purchased them they were half of their current offering but I still think they are a reasonable value. They also have a 30 day trial. Make sure your source components are dialed in to your musical tastes and with top tier cables, the Callistos are capable of amazing performance. BTW I have no realtionship with Revelation, just sharing my experience.