VENTED BOX VOLUME(INCLUDES DRIVER/PORT DISPLACEMENTS)VENTEDFREQUENCY RESPONSE @ 2.83 VVENTEDTRANSDUCER EXCURSION @ 400 WSEALED BANDPASS BOX VOLUME(INCLUDES DRIVER/PORT DISPLACEMENTS )SEALED BANDPASSFREQUENCY RESPONSE @ 2.83 VSEALED BANDPASSTRANSDUCER EXCURSION @ 300 WJBL Consumer Products • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.comGTO1220D 12" Woofer – Technical DataGTO1220D(side view)Portfo = 30.0 Hzdiameter = 4"length = 13.31"VBOX = 2.25 ft3 (63.72 liters)(no fiberfill)CdB11010510095908580757020 Frequency 50 100 Hz 200 500 1k 2 kOut-Of-CarIn-Car12 dB LP @ 80 HzCXd mM20.017.515.012.510.07.55.02.50.020 Frequency 50 100 Hz 200 500 1k 2 kVREAR = 1.50 ft3 (42.48 liters)(stuffed with loosely-packed fiberfill)GTO1220D(side view)VFRONT = 2.00 ft3(56.64 liters)(stuffed with loosely-packedfiberfill)diam. = 6"Portfo= 45.0 Hzlength =10.57CdB11010510095908580757020 Frequency 50 100 Hz 200 500 1k 2 kOut-Of-CarIn-Car12 dB LP @ 80 HzCXd mM20.017.515.012.510.07.55.02.50.020 Frequency 50 100 Hz 200 500 1k 2 k