My opinion after selling headsets for 15 years and doing testing in all sorts of planes it that the Bose and Halo both suck.
The Lightspeeds and Clarity Aloft perform way better.
The A20 won't handle the noise flying a 172 with the window open!
I have tested the whole line of Lightspeeds in Cessna's, Bonanza's, Stearmans, Pitts, Christen Eagles, Cubs and several other extremely loud aerobatic planes. All the Bose would do in the loud stuff is buzz, crackle and pop! I had 2 new Bose A20's to test with.
I used to sell lots of Bose but stopped. To many unhappy buyers. I do not get any complaints on the Lightspeed stuff I sell.