It all starts at the wall and I feel you should start with a non current limiting, non coloring power conditioner. The next step in the chain would be cables at the source and then work downline. The quality of the amplified signal cannot be improved once degraded.
Cables /power conditioner- Order of importance
Spoke to a few dealers regarding cables/conditioners and most of their opinions seems to differ. If youI wish to upgrade cable/conditioner but has limited budget, which would you upgrade 1st. Power conditioner, speaker cable, power cord, interconnect? What would be your order of importance? TQ. Happy listening