Originally Posted by Lank Thompson
I had the same issue.
I believe they refer to that sound as a "wolf tone".
I had the same issue on a number of basses including Fenders, Rick's and a Mike Lull.
What cured it for me was top-loading the strings.
I currently own a Precision Select which is my all time favorite bass.
I don't string it through the body anymore, but rather top load the strings.
It sounds amazing and absolutely no dead spots, sympathetic vibrates whatsoever.
If you are top-loading the strings already I'd suggest lowering the pickup height.
I know wolftones as the overtones you get with a <37" B string being fretted up the neck.
Sounds like a dead spot to me, if the issue only happens when playing chords, sounds more like a technique issue. Does the issue persist when only playing one of the problem notes of the double stop?