Starting to regret my earlier decision, there Mikey.

So you swapped the JBL's for the B&C's, but what passband are they playing with what slopes? Power? How is the impact and kick of the JBL vs the B&C, because we're talking a huge difference in xmax, right?
Same as the B&C. They're running from 100hz-800hz, -24db slopes. Wish I could run a little steeper, but it's fine for now. Power on tap is 150w/ea from my PRS-D4100F bridged to 8 ohms. The impact and kick is... not comparable.

It's seriously
insane. Even some of the most quiet recordings I have, i.e. older Zeppelin and Floyd stuff, is so impactful. The Dave Matthews live stuff that I use as one of my references is nuts. One track in particular- Say Goodbye- starts out with like a 3-4 minute drum solo. With the B&C, some of the lower drums sounded almost compressed or sloppy at higher levels. The snares were decent, but definitely lacking from what I expected from them. The 2118 on the other hand, dominated the lower drums, even at very high output, and the snares are just unreal. I enjoy loud music, and these more than deliver. All that being said, they are SO pleasant to listen to. When my friend was riding around with me, he made the comment that he thought because of how loud it was, it would be fatiguing and leave his ears ringing, and that he was surprised that after a solid hour of cranking it, neither of those things happened.