Thanks for the diagram, makes sense. The speakers are of the Tantrum line 6.5C. circa 2000-2010? ish. Unfortunately the manuals on this site for the Tantrums don't show the wiring detail, though i notice some of the newer model also have the same setup looking at the pictures on various web sites. b...

Hi I'm resurrecting some very old, but very lovely PG Tantrum 6.5C Coaxial Speakers which have been hiding in the back of a cupboard for years. There's 3 connectors, the normal + & - but also a 3rd "tweeter" connector (No polarity indicated) I can't for the life of me remember how I ha...