michael chuaMay 8, 2018HIFI DRIVERS8", Pioneer, W20GR30, Woofer Pioneer W20GR30 Thiele / Small Parameters Ported Box 20 liters. F3=47Hz Ported Box 25 liters. F3=43Hz Ported Box 35 liters. F3=37Hz Sealed Box 10 liters. F3=70Hz, Q=0.84 Sealed Box 20 liters. F3=69Hz, Q=0.67 Bandpass Box 25 liters. F3=43Hz-117Hz
