I was new to midi when I bought the h9 and used to own a 410c. Sounds like the midi output is still to transmit messages ( XMT ) Make sure that you've changed from XMT to THRU. Go into the midi menu tree and you'll find it in there. Then you'll have to set the amp channels as you did before. ie, press the midi button on the jvm and then load the preset on the h9 that you want that amp channel t to change to. Come back if you're still having trouble and I can talk you through it.