SPECIFICATIONSDIAMETER: 10" (250.0 MM)SENSITIVITY (2.83 V @ 1 M): 90 dBPOWER HANDLING: 250 WRMS (1,000 WPEAK)FREQUENCY RESPONSE: 28 ~ 500 HZNOMINAL IMPEDANCE: 4 OHMSVOICE-COIL DIAMETER: 2.0" (50.8 MM)DIMENSIONS:THIELE-SMALL PARAMETERSVOICE COIL DC RESISTANCE: R EVC (OHMS) . . . . . . 3.63VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (M H) . . . . . . . 2.68DRIVER RADIATING AREA: S D (IN 2) . . . . . . . . 53.63S D (CM2) . . . . . . 346.00MOTOR FORCE FACTOR: B L (TM) . . . . . . . . 14.30COMPLIANCE VOLUME: VAS (FT3) . . . . . . . . 1.27VAS (LITERS) . . . . . 36.10SUSPENSION COMPLIANCE: C MS (μM/N) . . . . 212.35MOVING MASS, AIR LOAD: MMS (GRAMS). . . . 136.18MOVING MASS, DIAPHRAGM: MMD (GRAMS) . . . 132.48FREE-AIR RESONANCE: FS (HZ) . . . . . . . . 29.60MECHANICAL Q: Q MS . . . . . . . . . . . 6.45ELECTRICAL Q: Q ES . . . . . . . . . . . . 0.45TOTAL Q: Q TS . . . . . . . . . . . . 0.42MAGNETIC-GAP HEIGHT: HAG (IN) . . . . . . . . . 1.30HAG (MM) . . . . . . . 33.00VOICE-COIL HEIGHT: HVC (IN) . . . . . . . . . 0.31HVC (MM) . . . . . . . . 8.00MAXIMUM EXCURSION: X MAX (IN) . . . . . . . . 0.49X MAX (MM) . . . . . . 12.50SEALED BOX VOLUME(INCLUDES DRIVER DISPLACEMENT)SEALEDFREQUENCY RESPONSE @ 2.83 VSEALEDTRANSDUCER EXCURSION @ 250 WJBL Consumer Products • 250 Crossways Park Drive • Woodbury, NY 11797 • www.jbl.comGT4-10 250mm Woofer – Technical Datamounting depth5.75" (147.00 mm)cutout diameter9.125" (232.00 mm)outer diameter10.125" (258.00 mm)VBOX = 0.75 ft3 (21.24 liters)(stuffed with loosely-packed fiberfill)GT4-10(side view)CdB100908070605040302020 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