Ibanez PM7 Phase Modulator If you've gone through one phase after another, maybe it's time for the final phase. The PM7 Phase Modulator offers three types of waveforms to give you everything from classic phaser to DJ effects to toy ray gun sounds. Since good things come in threes, the PM7 also has three phase stages: vintage, deep and dry, and deep and pronounced. With some minor tweaking, the PM7 goes from traditional to 21st century and beyond.