Gearbox on Yosemite? in GearBox (Legacy) Posted January 26, 2015 Man, my guitar port has been my favorite practice tool for over a decade. Small, light, sounds great for practice in headphones. I can jam with iTunes or youtube or whatever. Just dropped $2600 yesterday on a Macbook Pro, and now I find out that Gearbox is obsolete and can't be used? Just wasted 2 hours of practice time trying to get it to work. That right there is the last straw for me and Line6. I only used the guitar port for practice anyway, because it's simpler than firing up my AxeFx rig. I guess my Line 6 Journey has reached it's end.