Before the music started, some friends and I were checking out the Hammond and the Leslie cabinet behind it , and we were stoked. They might as well have left it at home. If I were looking to have somebody simply double my sound, I don't know that I would haul a Hammond and a Leslie cabinet around to do it.
I'm a player, and I have only done sound as a dedicated "sound guy" a few times. I know it's not easy, and I know every room is different. But, once you have the bass eq'd, there's a single slider that controls its volume. The EQ'ing, particularly on bass, can be a little complicated. The volume, on the other hand, is pretty simple.
A screw up here and there happens. I had the front man throw his hands up with a "WTF???" look one time because I killed his vocal mic in the middle of their best song. I grouped it wrong, and when I muted the backing vocal mics to prevent feedback on a three song stretch where there would be no backing vocals, I muted the lead vocal mic, as well. Stuff happens. But, if it's a bad room, and I don't think the Rio is, that's why you have an EQ. The sound we're complaining about was not a backload of standing waves. That sound sucked the moment it passed through the speaker grill.
This overwhelming bass and kick, EQ'd super-low and turned up super-loud, is done on purpose by guys who are following some formula they learned at some class without considering that the guy who delivered the formula either had his "pants on the ground" or was wearing dreads, and no one on the stage used at that class had a Les Paul or a Hammond.
I assume Bonamassa cares about sound, otherwise, I wouldn't bother mentioning it. If I griped on a forum every time I heard a show where some knucklehead put a death-metal or a hip-hop mix on a blues band or a rock band, I wouldn't have time to do anything but gripe on posts. This is not a matter of personal preference. And maybe one of the guys on this thread does complaint often about sound, but maybe he's right. This is happening a lot over the past several years, and the reason is because this is how sound guys are being taught to mix sound. I'm sure the formula works, but only for guys named Coco-Puff or Biggy something-or-other.
I really appreciate Bonamassa's music. It's perfect for guys like me who are more British blues than American blues and who rocked Led Zeppelin, AC/DC, ZZ Top, Lynyrd Skynyrd and Aerosmith in the parking lot at their high school (before they were expelled). I can't say I really heard that music Wed. night. I did hear an annoying, distorted boom that had no melody and that sucked all of the music from the room. So did the guys I was with.