Again, what's required is that you use the product in your system which means every non-soldered connection. It means removing the speaker drivers and putting a drop of fluid on the connections. You would put fluid on the exterior AND interior connections of your speaker's binding posts. Same with the ends of your interconnects, speaker cables, and where they plug in. I've treated the pins of my phono cartridge with great result. If you've owned your equipment for several years, it absolutely needs this treatment.