I have a few of these drivers available for sub duty and rather than building a passive radiator loaded box I figured since I'll be going all Fostex FE126E's in either Harvey or Saburo cabinets a BVR would also fit here for bottom end. Now I understand the cabinet was intended for a driver with slightly higher Q in the CSS driver but would the intended design still work with the low Q of the XLS. Inquiring minds would like to know.....
Take care.
Take care.