Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
I understand your desire to make the cabinets smaller. That's a worthy goal. And I think what you've described is probably pretty safe. However, I want to mention that you're not looking for crossover between subs and mains when used indoors, at least not in the traditonal sense. What you want is overlap, in this case, because you want multiple sound sources in the modal range.
One of the most important things for getting smooth, uniform bass indoors is having multiple sound sources below ~100Hz, positioned at different places in the room. For best sound quality, you really don't want to have just one sub covering this range.