Wayne Parham Messages: 18756 Registered: January 2001
Illuminati (33rd Degree)
Since you're essentially doing what some call a 2.5-way system, the crossover between woofer and midwoofer isn't critical. The main thing that's important is that crossover be done before the frequency where woofer and midwoofer are 1/4λ apart. I'd crossover around 100Hz to 200Hz with a 5mH to 10mH coil.