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GT1241D 12" Woofer � Technical Data
SPECIFICATIONS
DIAMETER: SENSITIVITY (2.83 V @ 1 M): POWER HANDLING: FREQUENCY RESPONSE: NOMINAL IMPEDANCE: VOICE-COIL DIAMETER: DIMENSIONS:
mounting depth 6.00" (152.00 mm)
12" (304.8 MM) 93 dB 300 WRMS 18 ~ 500 HZ 4 OHMS (PER COIL) 2.0" (50.7 MM)
SEALED BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)
GT1241D
(side view)
VBOX = 1.25 ft3 (35.40 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
cutout diameter 11.125" (283.00 mm) outer diameter 12.00" (304.80 mm)
SEALED FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 80 Hz 95
THIELE-SMALL PARAMETERS*
VOICE COIL DC RESISTANCE: R
EVC
90 85
Out-Of-Car
(OHMS) . . . . . . 1.92
VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (MH) . . . . . . . 1.33 DRIVER RADIATING AREA: S D (IN 2) . . . . . . . . 82.46 S D (CM2) . . . . . . 532.00 MOTOR FORCE FACTOR: COMPLIANCE VOLUME: SUSPENSION COMPLIANCE: MOVING MASS, AIR LOAD: MOVING MASS, DIAPHRAGM: FREE-AIR RESONANCE: MECHANICAL Q: ELECTRICAL Q: TOTAL Q: MAGNETIC-GAP HEIGHT: VOICE-COIL HEIGHT: MAXIMUM EXCURSION: BL (TM) . . . . . . . . . 9.09 VAS (FT3) . . . . . . . . 5.17 VAS (LITERS) . . . . 146.33 C MS (µM/N) . . . . 354.09 MMS (GRAMS). . . . 143.74 MMD (GRAMS) . . . 136.69 FS (HZ) . . . . . . . . 22.00 Q MS . . . . . . . . . . . 8.35 Q ES . . . . . . . . . . . . 0.46 Q TS . . . . . . . . . . . . 0.44 H (IN) . . . . . . . . . 0.31
AG
80 75
70 65
60
C
20
Frequency
50
100 Hz
200
500
1k
2k
SEALED EXCURSION/GROUP DELAY @ 300 W
20.0 17.5 Xd mM T mSec 10.0 7.5
15.0
5.0
12.5
Group Delay
2.5
HAG (MM) . . . . . . . . 7.92 HVC (IN) . . . . . . . . . 1.25 HVC (MM) . . . . . . . 31.75 X MAX (IN) . . . . . . . .0.47 X MAX (MM) . . . . . . 11.91 *VOICE COILS CONNECTED IN PARALLEL
10.0 7.5 5.0 Transducer Excursion 2.5
0.0 -2.5 -5.0 -7.5
0.0
20
Frequency
50
100 Hz
200
500
1k
-10.0 2k
C
Harman Consumer Group � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-496-3400 � FAX: 516-496-4868 � www.jbl.com
 $4.99 GT1241D JBL
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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