application 
While the Deja Vu includes the standard wet/dry blend control and the required delay time adjustment, the DejaVu also features an analog/digital blend control, to achieve any desired level of balance between the warmth of a real Bucket Brigade delay and the squeaky clean sound of a microprocessor-based digital delay. There's also a Feedback control, which allows you to dial in a runaway recycling of your sound in the style of an analog tape echo.

Also features two insert jacks. The Feedback Insert jack allows an external processor to be included in the recycling path, so that the processor's effect becomes more intense at each regeneration, thus continuously morphing the delayed sound as it recycles. The Wet output/loop jack works on the sound after it leaves the recycler, allowing custom tweaking of the overall character of the wet signal before it recombines with the dry signal.