You re-amp a signal if you want a different sound. Let's say you tracked with a Marshall and later decided you wanted a Mesa sound. You could re-amp to the Mesa using the dry signal, radial make a re-amping unit.
Not sure I understand the fx thing but a lot of sources use stereo effects on mono sources, guitar, vocals etc. Most effect units allow you to input mono and output stereo.
Sent from my iPod touch using Tapatalk
__________________
iMac i5 2.8GHz, Macbook Pro 2.4GHz, Pro Tools 10/11, MOTU 828mk2, Presonus Digimax FS, Presonus Firestudio Project, TC Konnekt 24D
---
iCON Photography
|