JBL GT1200 User Manual

SPECIFICATIONS
DIAMETER: 12" (304.8 MM)
S
ENSITIVITY (2.83 V @ 1 M): 95 dB
P
OWER HANDLING: 280 W
RMS
FREQUENCY RESPONSE: 25 ~ 3,000 HZ
NOMINAL IMPEDANCE:4 OHMS
VOICE-COIL DIAMETER: 2.0" (50.7 MM)
D
IMENSIONS:
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE:R
EVC
(OHMS) . . . . . . 3.17
V
OICE COIL INDUCTANCE @ 1 KHZ:L
EVC
(MH). . . . . . . . 2.16
D
RIVER RADIATING AREA:S
D
(IN
2
) . . . . . . . . 82.10
S
D
(CM
2
). . . . . . . 532.00
M
OTOR FORCE FACTOR:BL (TM) . . . . . . . . 12.82
C
OMPLIANCE VOLUME:V
AS
(FT
3
). . . . . . . . . 6.60
V
AS
(LITERS). . . . . 155.73
S
USPENSION COMPLIANCE:C
MS
(µM/N) . . . . 387.48
M
OVING MASS, AIR LOAD:M
MS
(GRAMS) . . . . 105.69
MOVING MASS, DIAPHRAGM:M
MD
(GRAMS). . . . . 98.64
F
REE-AIR RESONANCE:F
S
(HZ) . . . . . . . . 24.80
M
ECHANICAL Q: Q
MS
. . . . . . . . . . . 11.76
E
LECTRICAL Q: Q
ES
. . . . . . . . . . . . 0.32
T
OTAL Q: Q
TS
. . . . . . . . . . . . 0.31
M
AGNETIC-GAP HEIGHT:H
AG
(IN) . . . . . . . . . 0.31
H
AG
(MM) . . . . . . . . 7.92
V
OICE-COIL HEIGHT:H
VC
(IN) . . . . . . . . . 0.88
H
VC
(MM) . . . . . . . 22.23
M
AXIMUM EXCURSION:X
MAX
(IN) . . . . . . . . .0.28
X
MAX
(MM). . . . . . . . 7.15
IMPEDANCE CURVE
INFINITE BAFFLE
FREQUENCY RESPONSE @ 2.83 V
INFINITE BAFFLE
EXCURSION/GROUP DELAY @ 75 W
GT1200 12" Woofer – Technical Data
7•20 . . . . . JBL Technical Data
Ohms
100.0
1.0
3.0
10.0
30.0
20 Frequency 50 100 Hz 200 500 1k 2k
C
dB
105
100
95
90
85
80
75
70
65
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
C
Xd mM
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
T mSec
10.0
7.5
5.0
2.5
0.0
-2.5
-5.0
-7.5
-10.0
20 Frequency 50 100 Hz 200 500 1k 2 k
Transducer Excursion
Group Delay
mounting depth
5.75" (146.05 mm)
cutout diameter
11.13" (283.00 mm)
outer diameter
12.18" (309.44 mm)

JBL GT1200 Specifications

General

Brand	JBL
Model	GT1200
Category	Subwoofer
Language	English