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.
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.