Should I reset the crossover lower?
Will this affect the bass this amazing sub puts out?
What advantages would I gain?
The beta 50's can get down to 35
OWS-1's down to 70
C-351 down to 80
If the receiver set the crossover to 150hz then its best not to lower it because there could be a null or something weird happening below that frequency. I would run MCACC again just to make sure. You can leave it at 150hz if you like it, the only bad thing is that the subs start to become localized at such a high crossover.