The one DUMAXed there is I believe evenhung, or very slightly overhung. The current 9500 has around a 1.8-1.9" coil IIRC with a 32mm TP, so xmag should be around 18-19mm. Still nothing exceptional, but about 50% more displacement than the older version.They DUMAX very poorly since I do believe they are even-hung to get more BL. They work great for raw SPL at tuning since they will take gobs of power without damage. And they will *move* a good bit, just not linear. Although I would hesitate to recommend them over other subs in their class for a daily application since linear displacement IS going to be important for you deep sub bass information.