Here is a slightly different set-up I use. One power amp that has switchable inputs for balanced or RCA which is a Classe' CA300 is hooked to two different pre-amps, one solid state and the othe tubed plus two cd players gives the flexibility to change preamps with the flick of a switch and a multiple combination of either cd player with either preamp switchable from the frt panel. Ther is one combination I prefer the most but not one is right for all different tunes, plus I get bored with the same sound all the time. Maybe something like this will work for you?