So this 15” box is larger than previous generation.
![ceiling fan made a winning sound on model 5745 ceiling fan made a winning sound on model 5745](https://sc02.alicdn.com/kf/HTB1L3_UlljTBKNjSZFNq6ysFXXah.jpg)
3 handles (left, right, top) so the ergonomics are great.Amp panel quality and lighting better than the 300/500 series.Cabinet build design improved over the 300/500 series, which had a thin plastic strip at the seam that connected the boxes, which split on one of my 522A.
![ceiling fan made a winning sound on model 5745 ceiling fan made a winning sound on model 5745](https://www.usalovelist.com/wp-content/uploads/2013/07/Screen-Shot-2014-06-08-at-11.05.38-PM.jpg)
I played around with them a bit this week at home and then did a small wedding last night. I ended up selling my FBT Vertus rig and picked up a pair of RCF 745-A speakers, the flagship of the Art line.