Q For Qualified EEs Re "V/V/T Syndrome"

Bezmotivnik

New member
Several years ago, a real engineer here answered this question very well, but I can't clearly remember his explanation nor find the post, so let's start over:

Why, in technical terms, does this common and traditional passive circuit work so horribly? The intent is to be able to smoothly mix the volume levels of the two pickups. The actual result is that you can't -- and instead produce shelf-like attenuation and weird artifacts that sound like an envelope filter:

Here or here.

The short answer is that you are mixing dissimilar pickups in a common circuit and they don't like it, but what is the engineering rundown?

Many thanks for a good answer!
 
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