Did a rehearsal yesterday with the RB 15. Normally I have it on the floor and the boom is unbearable; I end up turning the bass pretty much all the way down to get rid of that.
This time I lifted it up onto a table and once it was at ear level there was much, much less of that. I added some bass back in via EQ and my onboard preamp and got a pretty sweet sound from it. This may be a salvageable relationship.
Lift the RB115 at least 18in from floor .
I found that RB115 has more low end spread out to my taste, so I sell it and get the RB112.