The Power Amplifier has two control inputs:
-The BTA input is used for CH4 from LabPro
-The mini-audio input is used for LabQuest.

The LabQuest input overrides the LabPro input, so that if the audio cable is left connected to the Power Amplifier, the LabPro input will be ignored. Disconnect the audio input cable from the Power Amplifier to use the LabPro input.

Either of the inputs to the Power Amplifier can be used with SensorDAQ. You connect to the screw terminals of the SensorDAQ. Remember the output is x2 the input  if you come in to the BTA connector and x10 the input, if you come into the audio input.