So far, none of the OP contributions to this forum suggest he has analog sources. The OP threads include queries re: CD players, DACs, servers and switching amps. It's hard enough to get 2 channels properly set up in a room, adding more can only be more difficult. Having all channel room correction in it's native digital state might be better than having it converted to analog then to digital then back to analog. The OP has suggested he prefers tubes, this unit can be connected to many tube amps, the tube component that usually imparts tube character the most.