GT4-12 (serv.man2) - JBL Car Audio Info Sheet (repair manual)

gt4-12 (serv.man2) info sheet
Model
GT4-12 (serv.man2)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
136.44 KB
Type
PDF
Document
Info Sheet
Brand
Device
Car Audio
File
gt4-12-sm2.pdf
Date

Read JBL GT4-12 (serv.man2) Info Sheet online

SPECIFICATIONS
D
IAMETER
: 12" (300 
MM
)
S
ENSITIVITY
(2.83 V @ 1
M
):
93 dB
P
OWER
H
ANDLING
:
250 W
RMS
(1,000 W
PEAK
)
F
REQUENCY
R
ESPONSE
:
23 ~ 450 H
Z
N
OMINAL
I
MPEDANCE
:
OHMS
V
OICE
-C
OIL
D
IAMETER
:
2.0" (50.8 
MM
)
D
IMENSIONS
:
THIELE-SMALL PARAMETERS
V
OICE
C
OIL
D
C
R
ESISTANCE
:
R
EVC
(
OHMS
) . . . . . . 3.56
V
OICE
C
OIL
I
NDUCTANCE
@ 1 
K
H
Z
: L
EVC
(
M
H) . . . . . . . 2.54
D
RIVER
R
ADIATING
A
REA
:
S
D
(
IN
2
) . . . . . . . . 82.31
S
D
(
CM
2
) . . . . . . 531.00
M
OTOR
F
ORCE
F
ACTOR
:
B
L
(T
M
) . . . . . . . . 14.78
C
OMPLIANCE
V
OLUME
:
V
AS
(
FT
3
) . . . . . . . . 3.22
V
AS
(
LITERS
) . . . . . 91.12
S
USPENSION
C
OMPLIANCE
:
C
MS
M
/N) . . . . 227.58
M
OVING
M
ASS
, A
IR
L
OAD
:
M
MS
(
GRAMS
). . . . 181.74
M
OVING
M
ASS
, D
IAPHRAGM
:
M
MD
(
GRAMS
) . . . 174.70
F
REE
-A
IR
R
ESONANCE
:
F
S
(H
Z
) . . . . . . . . 24.75
M
ECHANICAL
Q:
Q
MS
. . . . . . . . . . . 6.46
E
LECTRICAL
Q:
Q
ES
. . . . . . . . . . . . 0.46
T
OTAL
Q:
Q
TS
. . . . . . . . . . . . 0.43
M
AGNETIC
-G
AP
H
EIGHT
:
H
AG
(
IN
) . . . . . . . . . 1.30
H
AG
(
MM
) . . . . . . . 33.00
V
OICE
-C
OIL
H
EIGHT
:
H
VC
(
IN
) . . . . . . . . . 0.31
H
VC
(
MM
) . . . . . . . . 8.00
M
AXIMUM
E
XCURSION
:
X
MAX
(
IN
) . . . . . . . . 0.49
X
MAX
(
MM
) . . . . . . 12.50
SEALED BOX VOLUME 
(INCLUDES DRIVER DISPLACEMENT)
SEALED
FREQUENCY RESPONSE @ 2.83 V
SEALED 
TRANSDUCER EXCURSION @ 300 W
JBL Consumer Products  •  250 Crossways Park Drive  •  Woodbury, NY 11797  •  www.jbl.com
GT4-12 300mm Woofer – Technical Data
mounting depth
6.25" (158.75 mm)
cutout diameter
11.125" (283.00 mm)
outer diameter
12.25" (311.15 mm)
V
BOX
 = 
 
1.00 ft
(28.32 liters)
(stuffed with loosely-packed fiberfill)
GT4-12
(side view)
C
dB    
 100
   90
   80
   70
   60
   50
   40
   30
   20
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
20       Frequency       50                      100 Hz                200                              500                      1k                      2 k    
VENTED BOX VOLUME 
(INCLUDES DRIVER/PORT DISPLACEMENTS)
VENTED
FREQUENCY RESPONSE @ 2.83 V
VENTED
TRANSDUCER EXCURSION @ 300 W
SEALED BANDPASS BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
SEALED BANDPASS
FREQUENCY RESPONSE @ 2.83 V
SEALED BANDPASS
TRANSDUCER EXCURSION @ 300 W
JBL Consumer Products  •  250 Crossways Park Drive  •  Woodbury, NY 11797  •  www.jbl.com
GT4-12 300mm Woofer – Technical Data
GT4-12
(side view)
Port
fo = 30.0 Hz
diameter = 4"
length = 13.31"
V
BOX
 = 
 
2.25 ft
(63.72 liters)
(no fiberfill)
C
dB    
110
100
90
80
70
60
50
40
30
20       Frequency       50                      100 Hz                200                              500                      1k                      2 k    
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
C
Xd mM 
  40
  35
  30
  25
  20
  15
  10
  5
  0
20       Frequency       50                      100 Hz                200                              500                      1k                      2 k    
V
FRONT 
  
2.00 ft
3
              (56.64 liters)
(stuffed with loosely-packed
fiberfill)
diam. = 6"
Port
fo= 45.0 Hz
length =
10.57"
V
REAR
 = 
 
1.50 ft
(42.48 liters)
(stuffed with loosely-packed fiberfill)
GT4-12
(side view)
C
dB    
110
100
90
   80
   70
   60
   50
   40
   30
20       Frequency       50                      100 Hz                200                              500                      1k                      2 k    
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
C
Xd mM 
20       Frequency       50                      100 Hz                200                              500                      1k                      2 k    
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
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Download JBL GT4-12 (serv.man2) Info Sheet

Here you can read online and download JBL GT4-12 (serv.man2) Info Sheet in PDF. GT4-12 (serv.man2) info sheet will guide through the process and help you recover, restore, fix, disassemble and repair JBL GT4-12 (serv.man2) Car Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.