The missing piece


What is a piece of equipment you added to your system and it made such a huge impact you knew you would never get rid of it? cables, components, speakers e.t.c. for me it was a pair of Intuitive Design Gamma Summit speakers.
jughead
Wonderfull Hyperion HPS-938 speakers. Too bad that Hyperion had no idea how to run business resulting in bankruptcy. Poor customer support, no dealer base (closest dealer to Chicago was in Pennsylvania), no advertising of any kind. Very sad.
Torus power conditioner . Will stay in every system I put together as long as I live .
First - Boston Audio graphite blocks for speakers. Second - cleaning all the connectors in the system with Mo-Fi two step contact cleaner.