The Hex Phaser might be the most powerful and flexible stereo phaser ever created for a modular synthesizer. Unlike other phasers, the number of active stages and the stage at which feedback is introduced is easily configurable for a huge palette of phasing colors. Rate, depth, bandwidth, and feedback amount are fully modulatable. The unique Stereo Offset control alters the phase relationship between the left and right channel LFO's for massive stereo phasing effects.
Check out Hex Phaser in this video: https://youtu.be/c4I7LUy1_S0l.