Honestly?? idk, tho' I'm sure the sound guy made a difference to the bass feed I monitored last night.
I did exclusively use the Qi's for close to 2.5 yrs.. so I'm VERY USED to them and what I can get/expect from them.
I think my whole quandry is over the difference the ADEL's make to the LIVE stage mix.. they are more open and less-isolating than the Qi's, and I can hear more ambient noise - aircraft engine noise on the plane, FOH stacks, cymbals, etc. If I put my finger over the ADEL's [and negate their effect] then they sound more like the Qi's I'm used to. It's the overall blend I'm adjusting to.
The A8's sound AWESOME on canned music, I think I need time to adjust to the differences between them and the "closed ear" bass I got with the Qi's.