SC Insert

Audio signal flow: Input > StereoInserts > Dynamics (Comp/Gate/Expander) > Dry/Wet > out
Sidechain signal flow: Input/ext. Input > Dynamics (Comp/Gate/Expander) SC input

Depending what InsertFx and Dynamic module (Compressor, Gate, Expander) is used, the achieved effect will be totally different.
Tip: when adjusting the Comp/Gate/Expander parameters, first turn the Dry/Wet knob on the right fully clockwise to 'Wet' to hear only the effect of the dynamic module.

Examples:
Ducked Reverb on Vocals.  
In case you want reverb only to be heard in pauses, so that the vocals itself can be heard more clearly, proceed as following:
use a reverb as pre-dynamics insertFx, choose Comp mode, adjust threshold and ratio, and then attack and release time.

Fx only on loud passages.
Say you like to use a dominant fx like SSB Modulator or Pitch Shifter, but want it to be a bit more gentle.
After inserting it to a pre-dynamic insert slot, use Expander mode and adjust (foremost) ratio and threshold to get only the loudest parts affected by the fx.

Gated Reverb.
In this case, insert a Reverb fx into a pre dynamics insert slot, and select Gate mode.


Extern sidechain inputs (extL/R).
especially suited for use w/ Modular. You can get exceptional effects when using a Modular patch, maybe w/ tempo-synced LFO or Seq modules, for side-chaining one of the dynamic modules.  
note: if you want to use the extern SC inputs, the device cannot be used as an insertFx (in a mixer etc). Connect it separately in your Project window.

Download device: here  

SC Insert