Very nice indeed. I can see you are using Itunes for your digital music. I would recommend you change to either JRiver (what Mcintosh labs use for testing) or Audirvana (my preferit). They both cost about 80$ but sound improvement is material. Both can be piloted via iPad. I looked at your system primarely for I am considering purchasing a Mc C2300 or a ARC Ref6 (newer, more expensive...). If any comment on tube preamp, don't hesitate contacting me. Thanks
