I've not heard Vanderkley but every review I read says they are a class act.
I am sceptical, who needs a 3D bass sound? The drummer doesn't and most will probably not hear anything extra that 3D brings. Bergs are fantastic cabs. My last was a CN212. It has a great sound across all frequencies, not just the mids. I used a Thunderfunk and TH500 with the Bergs.
I still use the Thunderfunk but, these days, my main amp is an AG700 with Barefaced SC, SM and BB2 cabs. The best sound I've had so far.