Hi folks,
First, some background on the evolution of my system's cabling. I auditioned and then purchased a full loom of MasterBuilt Audio Signature interconnects (balanced), biwire speaker cable, and power cords in 2011. I own the first set of the VSA VR100XS speaker system which uses the same drivers for bass and midrange as the VR111 but in a relatively more compact six foot tower with a wwmtmww array. My 100's were the first speakers to be internally wired with MasterBuilt Audio Ultra cabling (more on that story to come). I purchased a loom of Ultra interconnects and two sets of speaker cables (for my now biamplified system) a year ago. I've not yet auditioned the Ultra power cords.
I wanted to clarify a couple of points regarding the MB Ultra cabling. As for Ultra's composition, it's not simply "six nines" copper, but is an alloy of various metals as well as rare earth elements. The insulation is manufactured by MB in a vacuum to remove oxygen that otherwise interacts with the signal. The configuration and conformation of the cabling is designed to both shield the cabling from external sources and to avoid self interaction of the signal.
References to the engineering work of the MasterBuilt engineering team on projects such as CERN, deep space probes, and communication systems are relevant in that these require the managment and retrieval of information from very low signal levels even in the presence of high signal levels and to reject contamination from external energy sources. Translated to the audio experience, low level information of hall ambience and the subtle nuances of instrumental timbre needs to be present not only during quiet musical passages, but also during crescendos. This applies not only to recordings of full orchestra, but also small jazz ensembles, big band, rock, etc.
Even after having Ultra cabling and internal wiring in my system for a year (longer for the 100's), I'm still amazed how instruments and voices are presented in a palpably intact way and that even in complex passages, the individuality of each instrument is retained. You can hear in a Horowitz recording that the piano is his piano-- he required that it was shipped to each performance venue, even to Moscow. When I play recordings of solo piano, the individuality of each piano is more clearly conveyed that I've heard elsewhere. A visual analogy I like to use is that with an Ultra system there is a filigree of detail retained in both quiet and loud passages that is otherwise lost. It's that high resolution quality that, in my experience, sets Ultra technology apart. Once you hear that, it's hard to go back to a system without it.
Best,
Robert