I’m also a proud owner of Octave gear. I currently have a RE320 amp-SBB with the HP700SE pre and run them on Focal Scala Evos with a Chord Dave and Aurender N20. I absolutely love my system and find it to be very musical and detailed. I started off with v80SE with SBB. I’ve never heard the 40, but you can’t go wrong with the v80.
Good luck! Let us know what you settle on.
Good luck! Let us know what you settle on.