You may know that you can use Cubase's excellent guitar effect plug-ins to create great sounding guitar and bass tone. But did you know that you can re-amp a recorded DI guitar or bass part (or any part for that matter), routing it back out of Cubase and through a real guitar amp, to capture a genuine amp tone? This short video from the course Cubase 10 501: Studio Series - Recording Guitars with Josh Carney shows you how to do it.
Josh demonstrates how to configure the Amp Rack plugin prior to re-amping, which largely involves turning most of its processing stages off. He then creates the required audio tracks in his project to re-record the amped guitar signal, before assigning his recorded guitar to play out through the audio interface, and into his hardware amp.
He then shows you the things you have to check to make sure it will all work correctly, including making sure the audio is routed correctly, any relevant send channels are active, and pre/post fader switches set correctly. With everything set, he hits Record and the guitar is looped out into the amp and recorded back in at the same time, all perfectly in real time. The result is a genuine hardware amp tone without having to re-record the DI guitar track. Check out the full course for much more on advanced guitar recording techniques in Cubase.