The PXL Series Looper from JOYO feature programmable looper control stations with switch, trigger and amp effects for 4 or 8 inputs. The JOYO PXL series of programmable guitar effect pedal controllers include the pxl4, pxl8, pxl-pro and the PXL Live. The JOYO PXL-Live is a very powerful pedal controller, it not only can be set to use dual 4 channels like the pxl pro with a total of 8 loop channels, but it is also designed with midi out, enabling you to trigger any kind of midi enabled amp or effect settings..
If you want to trigger you amp channel switches from your feet, you want the PXL Pro 8 which has triggers that you can program in. If your amp has midi, then you need the LIVE. Pre program your PXL to do all the fancy footwork for you.