I don't know. My JTV89F just isn't working with the HELIX. Same cables work with the VDI and connect with Monkey. Everything seems fine. Just REFUSES to bond with the HELIX. ALL LATEST FW. Did EVERYTHING I know how to make volume happen . . . NOTHING! 1/4" works fine between Helix and JTV. VDI - NOTHING. Not to be crude, but . . . WTF???