@rawr thanks for starting this discussion. I feel everytime someone asks a question I learn something new. Thanks @elliottdesigns for the excellent information. It make sense.
I will say, I am just finishing up a video on the Edifier Stax S3 Planar Headphones and I love the bass they produce. So fast and clean. I am a huge fan of Planar headphones. Overall, I really prefer them over dynamic driver headphones. At least with all the headphones I have currently tested.