Connecting the guitar into a DI unit that is fed to both recorder and guitar amp simultaneously, providing the guitarist with a proper amplifier "feel" while also tracking a dry signal.https://en.wikipedia.org/wiki/DI_unitApp_Reamp_K.htmlshapeimage_2_link_0
The dry, direct, unprocessed guitar recording is fed to a Reload to "re-record" the guitarist's unprocessed performance through a dedicated guitar amplifier and/or external effects. When re-amping electric guitar tracks, the guitarist need not be present for the engineer to experiment long hours with a range of effects, mic positions, speaker cabinets, amplifiers, effects pedals, and overall tonality – continuously replaying the prerecorded tracks while experimenting with new settings and tones.App_Reamp_K.html