4. Using a suitable wrench (not included), securely tighten the �knurled� nut (a) up against the bottom of the speaker until the floorstand post and the speaker are fully locked together, so that neither can be rotated by hand. 5. Pull the cone-shaped fitting (d) up against the speaker bottom, with its speaker wire hole (e) toward the back. 6. Connect the speaker wires to the speaker as outlined in the speaker�s owner�s manual.