SPECIFICATIONSDIAMETER: 10" (254.0 MM)SENSITIVITY (2.83 V @ 1 M): 89 dBPOWER HANDLING: 400 WRMS (1,600 WPEAK)FREQUENCY RESPONSE: 25 ~ 500 HZNOMINAL IMPEDANCE: 2 OHMSVOICE-COIL DIAMETER: 3.0" (76.2 MM)DIMENSIONS:THIELE-SMALL PARAMETERSVOICE COIL DC RESISTANCE: R EVC (OHMS) . . . . . . 1.84VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (M H) . . . . . . . 0.89DRIVER RADIATING AREA: S D (IN 2) . . . . . . . . 48.67S D (CM2) . . . . . . 314.00MOTOR FORCE FACTOR: B L (TM) . . . . . . . . 10.94COMPLIANCE VOLUME: VAS (FT3) . . . . . . . . 0.92VAS (LITERS) . . . . . 26.18SUSPENSION COMPLIANCE: C MS (μM/N) . . . . 186.99MOVING MASS, AIR LOAD: MMS (GRAMS). . . . 174.55MOVING MASS, DIAPHRAGM: MMD (GRAMS) . . . 171.36FREE-AIR RESONANCE: FS (HZ) . . . . . . . . 27.86MECHANICAL Q: Q MS . . . . . . . . . . . 9.69ELECTRICAL Q: Q ES . . . . . . . . . . . . 0.47TOTAL Q: Q TS . . . . . . . . . . . . 0.45MAGNETIC-GAP HEIGHT: HAG (IN) . . . . . . . . . 0.39HAG (MM) . . . . . . . 10.00VOICE-COIL HEIGHT: HVC (IN) . . . . . . . . . 1.65HVC (MM) . . . . . . . 41.90MAXIMUM EXCURSION: X MAX (IN) . . . . . . . . 0.63X MAX (MM) . . . . . . 15.95SEALED BOX VOLUME(INCLUDES DRIVER DISPLACEMENT)SEALEDFREQUENCY RESPONSE @ 2.83 VSEALEDTRANSDUCER EXCURSION @ 400 WJBL Consumer Products • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-496-3400 • FAX: 516-496-4868 • www.jbl.comP1020 10" Woofer – Technical Datamounting depth6.00" (153.00 mm)cutout diameter9.188" (234.00 mm)outer diameter10.00" (254.00 mm)VBOX = 0.75 ft3 (21.24 liters)(stuffed with loosely-packed fiberfill)P1020(side view)CdB100959085807570656020 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