Hi there! I've recently purchased a Madamp M15Mk1 deluxe model and have been trying to locate any info/details on adding an Fx/Effekt Loop aka Send/Return function to this amp. Unfortunately I can't find anything about it other than the brief reference at the end of the instruction manual for the amp :(.
Any help/answers or replies would be deeply apreciated!!!
Many Thanks/vielen Dank 
Tj_Genesis_Fan