Nice eequipment...seaton subs are serious stuff. Mirages nice too. Velodyne has an SRS-1 or something that is a crossover. Alternatively, you could run the Mirages in parallel with sub...yes, you still have main speakers running full blast, but you still get ability to adjust sub using its controls to blend.
depending on bass response of your mirages, you may find this preferable in the upper bass where 80hz cut-off might lose you some 'defined punch' in the upper bass. my two cents.
depending on bass response of your mirages, you may find this preferable in the upper bass where 80hz cut-off might lose you some 'defined punch' in the upper bass. my two cents.