Yes I know, but it has no JTV models shown in the input even though I set it to Variax. But when I plug in my 300 or 600, its there. I don't see anything about the Variax in the manual, only the Input is where I can choose the instruments, I set it to guitar and VX1 or only Variax and still do not see the JTV but the older 300 works. There is no pre-selected guitar in the screen, just blank, if I connect a 300 it will show that its connected but not the JTV. Is it a software or firmware problem, can I download another firmware to address this?