Salvo, a direct comparison of First Sound Paramount with Ref 3 is a tricky business at best:
First Sound is a single ended design optimized to operate in a single ended system. . . it may not shine at its best when inserted in an otherwise balanced system.
Ref 3 is a symmetrically balanced designed optimized to operate in a fully balanced system. . . it may not shine in a single ended system. . . I know I do not really like its performance when I turn off the balanced signal.
First Sound is a single ended design optimized to operate in a single ended system. . . it may not shine at its best when inserted in an otherwise balanced system.
Ref 3 is a symmetrically balanced designed optimized to operate in a fully balanced system. . . it may not shine in a single ended system. . . I know I do not really like its performance when I turn off the balanced signal.