SB42 x2 + C173N-T6-90 + T500AMKii 3way Passive Crossover Design
Crossover Design for two SB42 15″ woofers + Accuton C173N-T6-90 + Fostex T500AMKii 3way
Woofers: 10.0 cubic foot vented, two straight ports each 4″ x 3″.
Note: Woofer in reverse polarity. Clean network for complex 3-way. Large value midrange cap.