My house was built in 1960 and I am sure the wiring has never been upgraded. I upgraded the receptacles in the music room and bought a Running Springs Haley power conditioner, 6 outlets. For my system it greatly improved the sound, i.e. quieter background, and did not affect dynamics, soundstage, etc. I do not know anything about the insides of the Haley. I do not think you see them for sale very often. Just my 2 cents worth opinion.
Power Conditioner
I currently have a Torus RM20 power conditioner. Has anyone compared the RM20 to any Shunyata or IsoTek power conditioner? What Shunyata or IsoTek power conditioner do you recommend I compare to the RM20? Is it better to have one power conditioner for lower power components and a separate conditioner for the amplifier?