Modulation

In the early 1980s, the Chorus effect first introduced by Roland on their JC Series guitar amplifiers, was the effect to have, and the Boss CE-300 was affordable. The Boss CE-300 offers two independent chorus circuits to produce full pitch-deviation effects for a wider, fuller sounding effect in the stereo mode, as well as specific deep chorus effects.

The Boss RBF-10 Flanger from 1985 provided superior signal to noise ratio achieved with Built-In Noise Reduction.

The Boss RPH-10 Phaser from 1985 provides 3 different Phasing Modes that let this Phaser create a multitude of effects.