I move the sources around a bit, but tend to stick the amp and speaker combinations together.
I use the Thiels with the MF kW500, as they need the current/power.
The Accuphase power goes well with the Harbeths, driven by the Sony TA-ER1, the most transparent pre-amp I've ever heard. I use the Harbeths for close monitoring and easy listening. If I need a more dynamic and larger scale sound, then its the Thiel based system.
The SF Line 1 is used for video sources, to tame the sound before it goes to the main amps. I have a Sony TA-DA5400ES AV amp that I use for home theater.
The Sony SACD sound is no match for the LP12/Lingo/Linto combo, as well as the Esoteric P-70/D-70 combo.
The Esoteric combo can match the sound of the Linn LP system, in terms of dynamics and realism.
I've a VTL tube 70wpc power amp but it can't handle the power needed for most of my listening. I've sold a Rogue Audio Magnum 99 pre-amp recently with the acquisition of a Accuphase C-270V pre-amp. J