Starting from the basic constraints and design principles of hexaphonic pickups we have developed a new pickup that can be used to independently estimate vertical and horizontal string motion.

The pickup uses two coils around pole pieces of the same polar organization. Between these coils is a third pole piece of opposite polarity resulting in a two-ring field pattern with common flux lines at the center. Using pole pieces with a laterally asymmetric geometry we have created a pickup where perpendicular motions produce in-phase output in each coil and lateral motions result in out-of-phase signals. By summing and differencing the two pickup output signals a good estimate of horizontal and vertical motion can be obtained.