15119.8 3D MEASUREMENT MICROPHONEThe purpose of the calibration microphone is to measurethe characteristics of the loudspeaker and their layout inthe room.For each loudspeaker, the Optimizer gathers the followinginformation:• full 3D position• amplitude response• phase responseNOTE: Another quite popular pinout is the one from Yamaha. You should check which pinoutyour equipment is using before connecting it to the SDP-75. Unbalanced connections mustconnect signal to SubD-Hot and shield to SubD-Cold.