 This is the LiveLogic MIDI foot controller from Blackstar. In this video, I'm going to demonstrate how to control any MIDI-enabled amplifier or guitar pedal using the LiveLogic. With your LiveLogic connected to your amp via a 5-pin MIDI cable, you can send control change messages to adjust individual parameters on your amplifier. Having set up my foot controller using the accompanying software, I can now control different delay parameters on my Silverline Deluxe using the switches on the LiveLogic. Switch 1 is set to turn the delay on and off. Switch 2 is set to adjust the amount of feedback. Switch 3 is set to adjust the delay level. Switch 4 is set to input my own tap tempo. Similarly, any MIDI-enabled pedals can be controlled by the LiveLogic in much the same way. By connecting the LiveLogic to my Mako D1 from Walrus Audio, I can use control change messages to adjust individual parameters or program change messages to switch between patches in real-time. This time, I've set switch 1 to trigger preset 1 in bank A. I've set switch 2 to trigger preset 2 in bank A. I've set switch 3 to change mod values and I've set switch 4 to change the amount of repeats. You can find a list of all of the changeable parameters on your Silverline in the owner's manual over on the Blackstar website.