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User manual JBL 1200GTI - DOCUMENT
Diplodocs help download the user guide JBL 1200GTI - DOCUMENT.
This product, although classified under the brand JBL, may have been manufactured by UREI after mergers, acquisitions, or a change in name.
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User guide JBL 1200GTI - DOCUMENT
Detailed instructions for use are in the User's Guide. 1200GTi 12" Woofer Technical Data
SPECIFICATIONS
DIAMETER: SENSITIVITY (2.83 V @ 1 M): POWER HANDLING: FREQUENCY RESPONSE: NOMINAL IMPEDANCE: VOICE-COIL DIAMETER: DIMENSIONS:
mounting depth 4.25" (107.95 mm)
IMPEDANCE CURVE
12" (0.47 MM) 93 dB 600 WRMS 20 ~ 300 HZ 4 OHMS 4.0" (102.0 MM)
100.0 Ohms
30.0
10.0
3.0
1.0 20 Frequency 50 100 Hz 200 500 1k 2k
cutout diameter 11.19" (284.16 mm) outer diameter 12.19" (309.56 mm)
INFINITE BAFFLE FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 80 Hz 95
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE: R EVC (OHMS) . . . . . . 2.50 VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (MH). . . . . . . . 0.98 S D (IN 2) . . . . . . . . 84.57 DRIVER RADIATING AREA: S D (CM2). . . . . . . 548.00 BL (TM) . . . . . . . . 12.48 MOTOR FORCE FACTOR: VAS (FT3). . . . . . . . . 2.40 COMPLIANCE VOLUME: VAS (LITERS). . . . . . 56.66 C MS (µM/N) . . . . 132.87 SUSPENSION COMPLIANCE: MMS (GRAMS) . . . . 139.26 MOVING MASS, AIR LOAD: MMD (GRAMS). . . . 131.88 MOVING MASS, DIAPHRAGM: FS (HZ) . . . . . . . . 37.00 FREE-AIR RESONANCE: Q MS . . . . . . . . . . . . 4.89 MECHANICAL Q: Q ES . . . . . . . . . . . . 0.52 ELECTRICAL Q: Q TS . . . . . . . . . . . . 0.47 TOTAL Q: HAG (IN) . . . . . . . . . 0.32 MAGNETIC-GAP HEIGHT: HAG (MM) . . . . . . . . 8.12 HVC (IN) . . . . . . . . . 0.75 VOICE-COIL HEIGHT: HVC (MM) . . . . . . . 19.05 X MAX (IN) . . . . . . . . 0.22 MAXIMUM EXCURSION: X MAX (MM). . . . . . . . 5.46
7·50 . . . . . JBL Technical Data
90
Out-Of-Car
85
80
75
70
65
60 20 Frequency 50 100 Hz 200 500 1k
C
2k
INFINITE BAFFLE EXCURSION/GROUP DELAY @ 150 W
20.0 Xd mM T mSec 10.0 17.5 7.5
15.0
5.0
12.5 Group Delay 10.0
2.5
0.0
7.5
-2.5
5.0 Transducer Excursion
-5.0
2.5
-7.5
0.0 20 Frequency 50 100 Hz 200 500 1k
-10.0 2k
C
1200GTi 12" Woofer Technical Data
SEALED BOX VOLUME VENTED BOX VOLUME
length = 8.36"
Port
fo = 31 Hz
GTi1200
(side view)
GTi1200
(side view)
VBOX = 1.35 ft (38.23 liters) (all sides lined with 1-inch fiberglass or fiberfill)
3
VBOX = 2.50 ft (70.80 liters) (all sides lined with 1-inch fiberglass or fiberfill)
3
diameter = 4.0"
SEALED FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 80 Hz 95 105 110
VENTED FREQUENCY RESPONSE @ 2.83 V
dB In-Car 12 dB LP @ 80 Hz
90
Out-Of-Car
100 Out-Of-Car
85
95
80
90
75
85
70
80
65
75
60 20 Frequency 50 100 Hz 200 500 1k
C
70 20 Frequency 50 100 Hz 200 500 1k
C
2k
2k
SEALED EXCURSION/GROUP DELAY @ 300 W
20.0 Xd mM T mSec 10.0 20.0 17.5 Group Delay 15.0 5.0 7.5 17.5
VENTED EXCURSION/GROUP DELAY @ 300 W
Xd mM T mSec 10.0 7.5
15.0 Group Delay
5.0
12.5
2.5
12.5
2.5
10.0 Transducer Excursion 7.5
0.0
10.0
0.0
-2.5
7.5 Transducer Excursion
-2.5
5.0
-5.0
5.0
-5.0
2.5
-7.5
2.5
-7.5
0.0 20 Frequency 50 100 Hz 200 500 1k
-10.0 2k
C
0 20 Frequency 50 100 Hz 200 500 1k
-10.0 2k
C
JBL Technical Data . . . . . 7·51
1200GTi 12" Woofer Technical Data
SEALED BANDPASS BOX VOLUME NOTES
Port
fo = 65 Hz
length = 12.61"
GTi1200
(side view) diam. = 4"
VREAR =
1.35 ft3 (38.23 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
VFRONT = 0.50 ft3 (14.16 liters)
SEALED BANDPASS FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 80 Hz 95
90
Out-Of-Car
85
80
75
70
65
60 20 Frequency 50 100 Hz 200 500 1k
C
2k
SEALED BANDPASS EXCURSION/GROUP DELAY @ 500 W
20.0 Xd mM T mSec 100 17.5 75
15.0
50
12.5 Group Delay 10.0
25
0
7.5 Transducer Excursion 5.0
-25
-50
2.5
-75
0.0 20 Frequency 50 100 Hz 200 500 1k
-100 2k
C
7·52 . . . . . JBL Technical Data
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