The MIX control replicates the functionality of the Echo Volume control on the EP-3 uses the same basic passive mixer circuit. Set it to for dry only, and maximum for wet only.

• The TONE / REC LEV control sets the intensity of the "ape" or delay line. It does not affect the dry signal and only influences the initial first repeat.ing the knob while repeats are playing will not affect them. In practice, use this control in conjunction with the Mix control to set the balance.

• The SWAY / MOD control the amount of random tape wow and flutter effects in the echoes. At minimum, is no wow flutter. For the most tape warble, set control low.

• The ECHO SUSTAIN controls how much delay signal is fed back to the delay line for multiple repeats. From minimum up to around noon, a fixed number of repeats with a great decay curve is achieved. Above noon, infinite floating repeats and self-oscillation begin.

• The ECHO DELAY controls the delay time, ranging from approximately 80ms to 800ms. It is designed for real-time manipulation while playing to achieve the same sounds as an EP-3. Notably, when the Sustain is turned up, the echo sound "lags similar to how the Echoplex behaves when the slider.