Thanks for your input. Yeah, I probably still have a some time before they start production of Flex line, but I need to decide what option I want. I'd like something that would come out of the fusion between Tandems and Audeo with silver filters. That being said, guess twin balanced armature would be closer, wouldn't it?
Dual or triple armature may have too much bass for my liking due to greater number of transducers, so I'm stuck between two mentioned above.