The EarthQuaker Grand Orbiter Phase Machine is a professional-grade phaser with a diverse set of features. With a 3-way toggle switch, master rate control, depth control, sweep control and resonance, it's capable of producing stationary and resonant tones to slow and mellow sounds, all the way to intense and swirly soundscapes. The flashing red LED works as a visual indicator, and the effect can even be used in bypass mode. With this range of settings, it's no surprise the Grand Orbiter is a favorite of producers, musicians and sound designers.