Connection problems with Amplifier

[muzicman144]

Originally Posted by bryant

I agree. It's just that sometimes on this mixer (Behringer1404FX) I get a grounding thing from my laptop, sort of like one of the wires is bad. So what I do is unplug the right channel and I always get a full sound into the mixer and out to the amps. I think the white is designed to sum the channels when plugged in by itself.

You need a ground loop isolator (available at Radio Shack for $16.95 or online Humex for about $30.00) This will eliminate your hum or static. The two lines carry two separate sounds which give you the stereo effect. Once you get the isolator and hook both lines, you'll see the difference.
muzicman

[bryant]

Originally Posted by muzicman144

You need a ground loop isolator (available at Radio Shack for $16.95 or online Humex for about $30.00) This will eliminate your hum or static. The two lines carry two separate sounds which give you the stereo effect. Once you get the isolator and hook both lines, you'll see the difference.
muzicman

I thought ground loop was a constant irritating hissing or humming thru the speaker system which I am not getting. It's just that once in a while the right side gets momentarily staticy and when I pull the right side out of the mixer, everything sounds perfect again. It happens with new wires too, but it doesn't happen often, just at random and NOT that often.

But I'll try the eliminator anyway.

[George]

I wouldn't be without a can of contact cleaner.

Good for switches, jacks, plugs, etc., any of which can cause a static as they age, including mike jacks. Just spray a bit into the plug, insert the jack and turn it around and in and out a bit to clean both, and static is gone.

It's available in most any electronic supply store that caters to electronic service repair men. Last I knew, Radio Shack had it.