Hey Shekoski! All effects block on the M13 are fully customizable so you can arrange them in any order you want. If you have external effects pedals that you use together with the M13, you can put them in the programmable effects loop. It can be PRE ALL which means before all other effects, POST ALL - after all other effects, or can also be squeezed in between effects block. As for my case, I patch it between effects block 2 and 3. This allows me to have a Compressor, Wah, Phaser (only modulation in put before preamp) before my Tech 21 Pedals and Suhr Riot and have my other modulations including Filters, Delays, reverbs, after my External Pedals.