I answered this before, but just now when reading the Headphonesty review of the HFM HE-6 SE v2 just now found this description of its planar bass:
This is what neutral planar magnetic bass is all about. It’s there when the music calls for it, but is everything that a bass-boosted signature is not. Notes are controlled and clear. They are viscerally engaging at times and just enough to balance a crisp high-end at others.
This is the subtlety and strength of a great pair of headphones. The ability to deftly and effortlessly balance quantity and quality.
Been opining on this many times over the years, but this is said much better than I have put it. There is accurate bass and "fun"/technicolored bass - clearly.
I've tried most of the planars that are out there (Susvara, HE6, LCD5&4, Final D8K Pro&LE...) I can appreciate that kind of bass, but in my subjective opinion, althought it can sound cleaner and more detailed, it can't match the sense of dynamics that a dynamic driver can produce. Even with EQ.
Planars has many advantages over DD, but on that regard, I still prefer DD.