Yamaha DTXpress/DTXplorer/DTXtreme

> You will find the A-B polarity switch on your KP65 kick tower.

I've had a look and, although I have the blokey problem of not
actually being able to see things that are right in front of my eyes
(my g/f then comes along and points it out for me), I'm almost 100%
sure there's no such switch on mine. Maybe they phased it out/in at
some point.

When you mentioned it the first time I looked in the manual and
couldn't see any mention, although again I might have missed it.

J