JBL 1200GTi - User Manual

SPECIFICATIONS
DIAMETER: 12" (0.47 MM)
S
ENSITIVITY (2.83 V @ 1 M): 93 dB
P
OWER HANDLING: 600 W
RMS
FREQUENCY RESPONSE: 20 ~ 300 HZ
NOMINAL IMPEDANCE:4 OHMS
VOICE-COIL DIAMETER: 4.0" (102.0 MM)
D
IMENSIONS:
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE:R
EVC
(OHMS) . . . . . . 2.50
V
OICE COIL INDUCTANCE @ 1 KHZ:L
EVC
(MH). . . . . . . . 0.98
D
RIVER RADIATING AREA:S
D
(IN
2
) . . . . . . . . 84.57
S
D
(CM
2
). . . . . . . 548.00
M
OTOR FORCE FACTOR:BL (TM) . . . . . . . . 12.48
C
OMPLIANCE VOLUME:V
AS
(FT
3
). . . . . . . . . 2.40
V
AS
(LITERS). . . . . . 56.66
S
USPENSION COMPLIANCE:C
MS
(µM/N) . . . . 132.87
M
OVING MASS, AIR LOAD:M
MS
(GRAMS) . . . . 139.26
M
OVING MASS, DIAPHRAGM:M
MD
(GRAMS). . . . 131.88
F
REE-AIR RESONANCE:F
S
(HZ) . . . . . . . . 37.00
M
ECHANICAL Q: Q
MS
. . . . . . . . . . . . 4.89
E
LECTRICAL Q: Q
ES
. . . . . . . . . . . . 0.52
T
OTAL Q: Q
TS
. . . . . . . . . . . . 0.47
M
AGNETIC-GAP HEIGHT:H
AG
(IN) . . . . . . . . . 0.32
H
AG
(MM) . . . . . . . . 8.12
V
OICE-COIL HEIGHT:H
VC
(IN) . . . . . . . . . 0.75
H
VC
(MM) . . . . . . . 19.05
M
AXIMUM EXCURSION:X
MAX
(IN) . . . . . . . . 0.22
X
MAX
(MM). . . . . . . . 5.46
IMPEDANCE CURVE
INFINITE BAFFLE
FREQUENCY RESPONSE @ 2.83 V
INFINITE BAFFLE
EXCURSION/GROUP DELAY @ 150 W
1200GTi 12" Woofer – Technical Data
7•50 . . . . . JBL Technical Data
mounting depth
4.25" (107.95 mm)
cutout diameter
11.19" (284.16 mm)
outer diameter
12.19" (309.56 mm)
Ohms
100.0
1.0
3.0
10.0
30.0
20 Frequency 50 100 Hz 200 500 1k 2k
C
dB
100
95
90
85
80
75
70
65
60
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

Summary

JBL 1200 GTi Woofer Specifications

JBL 1200 GTi Woofer Impedance Curve

JBL 1200 GTi Woofer Infinite Baffle Frequency Response

JBL 1200 GTi Woofer Infinite Baffle Excursion;Group Delay

JBL 1200 GTi Woofer Sealed Box Volume

JBL 1200 GTi Woofer Sealed Frequency Response

JBL 1200 GTi Woofer Sealed Excursion;Group Delay

JBL 1200 GTi Woofer Vented Box Volume

JBL 1200 GTi Woofer Vented Frequency Response

JBL 1200 GTi Woofer Vented Excursion;Group Delay

JBL 1200 GTi Woofer Sealed Bandpass Box Volume

JBL 1200 GTi Woofer Sealed Bandpass Frequency Response

JBL 1200 GTi Woofer Sealed Bandpass Excursion;Group Delay

JBL 1200 GTi Woofer Notes

JBL 1200GTi Specifications

General

Size	12 inches
Power Handling (RMS)	700 watts
Impedance	4 ohms
Cutout Diameter	11.125 inches
Overall Diameter	12.5 inches
Type	Subwoofer
Voice Coil Diameter	3 inches