That rich , deep , warm , thick , tubey , old school thump is what I love. Not a heavy distortion , but a rich thump. Something the B15 delivered , but it lacked the power for most gigs , and weighed a ton. I’m just about there running a tube pre into a clean transparent Class D back end. I have the big bottom , and a 700 watt slam. I’m also using quite a variety of basses. Some with flats , and some with fresh rounds.
This looks like a very suitable new take on the stuff I like. Class G is not something I’m familiar with. There’s an interesting lineage of Italian amp design.
Unfortunately I live in a fairly remote part of the planet.