IK Multimedia EQ P50BFollowing in the footsteps of its simpler three band P50A brother, the EQ P50B module expands in flexibility by adding a fourth EQ band. This module is so great sounding because of the rather simple all discrete circuit schematic of the original hardware it's based on, whose key point is the 2520 op amp. Its four peaking bands with seven selected frequencies cover the whole spectrum and then some. It also allows for the overlapping of bands for