VENTED ENCLUSURE VOLUME(INCLUDES DRIVER/PORT DISPLACEMENTS)VENTED ENCLOSUREFREQUENCY RESPONSE @ 2.83 VVENTED ENCLOSURE TRANSDUCEREXCURSION @ 400 WBANDPASS ENCLUSURE VOLUME(INCLUDES DRIVER/PORT DISPLACEMENTS)BANDPASS ENCLOSUREFREQUENCY RESPONSE @ 2.83 VBANDPASS ENCLOSURE TRANSDUCEREXCURSION @ 400 WJBL Consumer Products • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.comP1224(side view)PortfB = 33.0 Hzdiameter = 4"102mmlength = 10-3/4"277mmV BOX = 1.75 ft 3 (49.56 liters) V REAR = 1.00 ft 3 (78.30 liters) VFRONT = 1.75 ft 3(49.56 liters)P1224(side view)diam. = 4" (102mm)2 PortfB= 55 Hzlength =7"(178mm)20 Hz 30 40 50 60 70 80 90 100 200 300 20 Hz 30 40 50 60 70 80 90 100 200 300dBSPL dBSPL20 Hz 30 40 50 60 70 80 90 100 200 3005u10u20u50u100u200u500u1m2m5m10m20m30m M20 Hz 30 40 50 60 70 80 90 100 200 3005u10u20u50u100u200u500u1m2m5m10m20m30m MOut-Of-CarIn-Car12 dB LP @ 80 HzOut-Of-CarIn-Car12 dB LP @ 80 HzP1224 12" Woofer – Technical Data®(stuffed with loose-packed fiberfill) (stuffed with loose-packed fiberfill) (stuffed with loose-packed fiberfill)6570758085909510010511011565707580859095100105110115