I’m pulling my hair out trying to hook this up. This is my first post. Thanks for having me. I hope I can contribute here. I’m trying to hook up my IPad with Bias Fx2 to my Roland Cube Ex. I’ve had limited success. I have the IRig Duo, and the ART Dual rdb. It seems like I can’t find the proper input on the Cube. It works without the Rdb, going from the IRig headphone jack. I’m at a loss. Thanks for your help in advance. I hope there’s someone smarter than me, because I feel like a dummy right now.