Modnetic offers comprehensive routing options unlike the hardware units on which it is based. It is therefore possible to use it as just an analog delay, or just a convolution system, or just a modulation fx system, or any combination of these.
The routing section in Modnetic enables you to do things the old hardware units could not. The ‘parallel’, ‘post’ & ‘pre’ options in the Reverb Routing section refer to the routing of the reverb (convolution) section (if it is on). If, for example, this is set to ‘pre’, the reverb will be put before the delay. The more common setting is ‘parallel’, where the dry (post preamp) signal is directed into both reverb and delay and mixed together afterwards.
For more information on getting the most out of audio routing in Modnetic, see the “Routing” part of the “Reference” section of the Modnetic manual.