You're confusing Dirac Live Bass Management (DLBM) with Dirac Live Bass Control (DLBC). Anyone who already had Dirac Live Full Bandwidth license is eligible for DLBM, which includes RZ50 and similar brethren (Pioneer 505 and Integra DRX5.4). I had access to DLBM last year when my Denon 3800 had a firmware upgrade similar to what the RZ50 is getting now.I disagree. It's a lower tier line and I've expected it to be a paid option if it ever happened. It's a $300 option for the RZ50, so I'm not sure why you're saying "free"?
After the calibration results that included DLBM, I was satisfied and opted not to pay for the additional DLBC license (especially since I only have one SW)!
As I stated before in a previous post, I suspect Voxx didn't update the 7100/305/DRX3.4 for DLBM/DLBC in order to create further market separation from the more expensive siblings despite the hardware being nearly the same! If it was going to get DLBM/DLBC, it would have been available at the same time as the RZ50/505/DRX5.4!