I'm guessing you're asking about speaker cables*, so the question of adjustable impedance-matching does not come up.
Oracle V2 was an excellent speaker cable, but V2.1 is more open, has a more articulate bottom end with better pitch definition, and has better over-all soundstaging and holography.
* MIT never made an interconnect called "Oracle V2." The model prior to Oracle V2.1 interconnect was called 350 Oracle.
Hope this helps. Best, Joe
Oracle V2 was an excellent speaker cable, but V2.1 is more open, has a more articulate bottom end with better pitch definition, and has better over-all soundstaging and holography.
* MIT never made an interconnect called "Oracle V2." The model prior to Oracle V2.1 interconnect was called 350 Oracle.
Hope this helps. Best, Joe