How about just changing the crossover point or slope of the mid/sub.
You don't need to cross that low with those speakers, 80-70hz LP with a 12db slope would seem more ideal for the tempest - since it plays fairly well to 150hz.
80-70hz HP for the seas with a 12db slope would seem more ideal as well, and since it's natural attenuation looks like it starts around 100hz.
You don't need to cross that low with those speakers, 80-70hz LP with a 12db slope would seem more ideal for the tempest - since it plays fairly well to 150hz.
80-70hz HP for the seas with a 12db slope would seem more ideal as well, and since it's natural attenuation looks like it starts around 100hz.