SB34 + P17 + D27 Passive Crossover Design
Crossover Design for SB34NRX75-6 woofer, Scan P17WJ00 6.5″ mid-bass, and old Vifa D27TG35 tweeter in 3way configuration.
Woofer: 2.7 cubic foot vented, single straight port 3″ x 6″
Midrange: 0.7 cubic foot sealed chamber.
Additional Notes: Crossover points about 300 Hz and 2.5 kHz. Nominal output ~ 86-87 dB. Two large value hi-pass caps and high value midrange cap. Significant padding in hi-pass circuit. Note the woofer is in reverse polarity relative to the mid and tweeter.