Hard' bypass switches for comparing the processed sound directly with the original source. Links the two channels for stereo operation. The ratio and output controls for the two channels should be set to the same values. The optical element operates with very fast attack and release times, which are peak-averaged by the rapid operation of the optical cell. Presets 5 and 6 are program-dependent.
Tip is send, and Ring is return.
In Link mode, only the channel 1 insert is active. Input impedance is 10kohms. Output impedance is 600 ohms.