Hi. I play midi accordion with an Audya4. I recently purchased an LD Systems Maui 11 g2 and it sounds superb. I do not play professionally but I always try to buy decent equipment and this is excellent.
If you are going to be using to take to gigs it will be so easy to transport.
The transport bags are a bit expensive For what they are but a neccessity to protect your system in transit.
I had a demo of the Maui 11 & the Maui 28 and for me and my equipment the 11 sounded crisper & clearer than the 28.It is only 1000w compared to 2000w on the 28 but still packs a punch and in my opinion sounds great.
I cannot compare it to the Bose as I have not heard the Bose.
Before I even tried to demo the Maui, I looked on various web sites on different products within a price range and the Maui seemed to be the stand out. Hope this helps.

I’ve been using 2 Turbo 1000 sound for a couple of years with Audya 5 or Genos with vocals, happy with it,

I use 2 Maui 11's with midi accordion thru ketron sd4 and wersi pegasus 2+ modules, and my Yamaha arranger keyboard for last 5 years. They sound fantastic and can cover any inside job and some outdoor ones.