@jafant yes, still running Cardas Golden Reference which have been out of production for years now. Bi-wired! That was my final step along with upgrading to Cardas CPB binding posts. That really snapped everything into a beautiful focus, icing on the cake of many fruitful upgrades. OTOH, I also have a Cardas Golden powercord to my amp, and that might be the least cost effective tweak I’ve done.