Thanks for posting everyone.
Chadeffect, I thought that my current system was soundng pretty good. But when I installed the fuse chips the improvement that I hear is the sound becomes calmer, rounder, with more depth. Voices take on a more natural sound. The bass seemed to get a little louder so I re-tweaked the settings on my JL subs. Really all positive and no negatives with this inexpensive tweak.
The other chips that are designed to work with speakers, cables, transformers are pricier so I have big expectations as to thier contribution.
I'll post more once I receive them and have them installed.
But if anyone else has had some experience with these chips I would like to hear your impressions.