You can check it by yourself: Open up the gearbox and look at the effect chain. there should be an arrow pointing upwards. it's for "send 3-4". if so, you should be able to record a DI signal. To do so you have to enable a second bus with send 3-4 in your daw. create two new audio tracks. the first one needs send 1-2 (gearbox sound) as input and the second one 3-4 (Di Signal).