If it helps, the manual suggests setting up external effects, reverb, etc using the following approach:
4.2 USING THE PREAMP OUTPUT/LINE INPUT AS AN INSERT The FIREPOD features ¼” TRS balanced Send and Return jacks on Channels 1 and 2. These jacks are labeled as Preamp Output (SEND) and Line Input (Return). These connectors allow the use of external processors such as reverbs, de-essers, limiters, EQ’s, etc. Simply connect the Preamp Output jack, balanced or unbalanced to the input of the external processor. Then connect the FirePod’s Line Input jack to the output of the external processor. The signal is now routed out of the FIREPOD, into the external processor, then back into the FIREPOD. The final, processed signal will be available to record now. The Line Input can also be used as a standard line level input for devices that do not require preamplification (such as a CD player, drum machine, sampler and etc.).
I don't have a Firepod so I can't say exactly how you could set it up to add effects after recording.
