Q and BL magnet diameter???

[B-Rich 0]

I need to know the magnet diameter of the current model BL and Q. I am thinking of upgrading my subs in the future and would like to use my current box and need the mag OD. Any help would be greatly appreciated.

[NDMstang65 403]

Current BL is 220mm..

If you can fit that then you can fit the Q.