JBL GT1200D
Manual de Servicio

GT1200d 12" Woofer � Technical Data
SEALED BANDPASS BOX VOLUME NOTES

Port
fo = 65 Hz

length = 9.95"

GT1200d
(side view) diam. = 4"

VREAR = 1.20 ft3 (33.98 liters)
(all sides lined with 1-inch fiberglass or fiberfill)

VFRONT = 0.60 ft3 (16.99 liters)

SEALED BANDPASS FREQUENCY RESPONSE @ 2.83 V
dB 105 In-Car 12 dB LP @ 90 Hz 100

95

90

Out-Of-Car

85

80

75

70

65 20 Frequency 50 100 Hz 200 500 1k

C

2k

SEALED BANDPASS EXCURSION/GROUP DELAY @ 150 W
20.0 Xd mM T mSec 40 17.5 30

15.0

20

12.5

Group Delay

10

10.0

0

7.5

-10

5.0 Transducer Excursion 2.5

-20

-30

0.0 20 Frequency 50 100 Hz 200 500 1k

C

-40

2k

JBL Technical Data . . . . . 7�25