I am trying to set my Spot 250's to work with the "built in mic". I was told that these have built in mics and that the audio sensitivity knob on the back of the fixutes controls the sensitivity of the mic. I have made the necessary changes on the front panel to turn audio ON. I also understand that this works with bass only and not treble and bass like the Mighty Scans. (which I also own). The question is, what am I doing wrong? When I turn the sesitivity to about 25%, the head starts to move on it's own. I then back off just a bit until it stops moving and then play some low bass music. I own a 2000W amp and 2 18" subs, so I know that is not the issue. I can not get these to respond via sound. I purchased these as soon as they came out. Both fixters respond the same way. Please Help! Show coming up on Saturday that I was hoping to use these at.
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