Gary I have owned,literally hundreds of non Roland keyboards, and scores of non Roland sound systems
True..I became a fan of Roland in the early 80's..they were consistantly on top with their line..in fact I became a Roland dealer back then..
I liked many other brand equipment too...not across the board as I did Roland..Yamaha, Korg, Crumar, Siel , Digital keyboard, Sequential circuits etc, had some dogs..
It was great time in the mid 80's..we had the Mirage, DX7, M1, JX10...These and others I used for a long time..
Same with sound systems.. I always had the big Cubes..Everything I owned has been compared to them..They are my benchmark..I have used just about every system you can think of..
Some of my "bench mark" keyboard were The G1000, X1, XP80 and G70..
I was fortunate to have the instruments side by side, for my evaluations.
As for the Bose, sure they sound good, I have never gigged with them, but tried them, even tested them..a lot..They lack frequencies from the factory..that you just won't hear without a 31 band eq..(in stereo).
I have also tried the over priced current sound systems..that are overated...and lack bottom..Podium shames them in the bottom end..
I have performed many times with array speakers..not the 2 inch kind
and not the systems you would play in your bedroom
They are designed for high volume, and large coverage..Usually when our audience are over a couple thousand people.