GT 1241 (serv.man2) - JBL Car Audio Service Tips (repair manual)

gt 1241 (serv.man2) service tips
Model
GT 1241 (serv.man2)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
95.43 KB
Type
PDF
Document
Service Tips
Brand
Device
Car Audio
File
gt-1241-sm2.pdf
Date
Next: JBL GT 1241D Service Tips

Read JBL GT 1241 (serv.man2) Service Tips online

SPECIFICATIONS
D
IAMETER
:
12" (304.8 
MM
)
S
ENSITIVITY
(2.83 V @ 1
M
):
93 dB
P
OWER
H
ANDLING
:
300 W
RMS
F
REQUENCY
R
ESPONSE
:
18 ~ 500 H
Z
N
OMINAL
I
MPEDANCE
:
4 
OHMS
V
OICE
-C
OIL
D
IAMETER
:
2.0" (50.7 
MM
)
D
IMENSIONS
:
THIELE-SMALL PARAMETERS
V
OICE
C
OIL
D
C
R
ESISTANCE
:
R
EVC
(
OHMS
) . . . . . . 3.29
V
OICE
C
OIL
I
NDUCTANCE
@ 1 
K
H
Z
: L
EVC
(
M
H) . . . . . . . 1.12
D
RIVER
R
ADIATING
A
REA
:
S
D
(
IN
2
) . . . . . . . . 82.46
S
D
(
CM
2
) . . . . . . 532.00
M
OTOR
F
ORCE
F
ACTOR
:
B
L
(T
M
) . . . . . . . . 10.65
C
OMPLIANCE
V
OLUME
:
V
AS
(
FT
3
) . . . . . . . . 4.99
V
AS
(
LITERS
) . . . . 141.40
S
USPENSION
C
OMPLIANCE
:
C
MS
(µ
M
/N) . . . . 351.81
M
OVING
M
ASS
, A
IR
L
OAD
:
M
MS
(
GRAMS
). . . . 116.87
M
OVING
M
ASS
, D
IAPHRAGM
:
M
MD
(
GRAMS
) . . . 109.82
F
REE
-A
IR
R
ESONANCE
:
F
S
(H
Z
) . . . . . . . . 24.82
M
ECHANICAL
Q:
Q
MS
. . . . . . . . . . . 8.42
E
LECTRICAL
Q:
Q
ES
. . . . . . . . . . . . 0.53
T
OTAL
Q:
Q
TS
. . . . . . . . . . . . 0.50
M
AGNETIC
-G
AP
H
EIGHT
:
H
AG
(
IN
) . . . . . . . . . 0.31
H
AG
(
MM
) . . . . . . . . 7.92
V
OICE
-C
OIL
H
EIGHT
:
H
VC
(
IN
) . . . . . . . . . 1.25
H
VC
(
MM
) . . . . . . . 31.75
M
AXIMUM
E
XCURSION
:
X
MAX
(
IN
) . . . . . . . .0.47
X
MAX
(
MM
) . . . . . . 11.91
SEALED BOX VOLUME 
(INCLUDES DRIVER DISPLACEMENT)
SEALED
FREQUENCY RESPONSE @ 2.83 V
SEALED 
EXCURSION/GROUP DELAY @ 300 W
Harman Consumer Group  •  250 Crossways Park Drive  •  Woodbury, NY 11797  •  VOICE: 516-496-3400  •  FAX: 516-496-4868  •  www.jbl.com
GT1241 12" Woofer – Technical Data
mounting depth
6.00" (152.00 mm)
cutout diameter
11.125" (283.00 mm)
outer diameter
12.00" (304.80 mm)
V
BOX
 = 
 
1.25 ft
3 
(35.40 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
GT1241
(side view)
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
VENTED BOX VOLUME 
(INCLUDES DRIVER/PORT DISPLACEMENTS)
VENTED
FREQUENCY RESPONSE @ 2.83 V
VENTED
EXCURSION/GROUP DELAY @ 300 W
SEALED BANDPASS BOX VOLUME
(INCLUDES DRIVER/PORT DISPLACEMENTS)
SEALED BANDPASS
FREQUENCY RESPONSE @ 2.83 V
SEALED BANDPASS
EXCURSION/GROUP DELAY @ 250 W
Harman Consumer Group  •  250 Crossways Park Drive  •  Woodbury, NY 11797  •  VOICE: 516-496-3400  •  FAX: 516-496-4868  •  www.jbl.com
GT1241 12" Woofer – Technical Data
GT1241
(side view)
Port
fo = 35.0 Hz
diameter = 4"
length = 8.00"
V
BOX
 = 
 
2.00 ft
3 
(56.64 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
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 @ 75 Hz
C
Xd mM 
40
35
30
25
20
15
10
5
  0
T mSec
 20
  15
  10
  5
  0
-5
-10
-15
-20
20       Frequency       50                      100 Hz                200                              500                      1k                      2 k    
Transducer Excursion
Group Delay
V
REAR
 = 
 
2.00 ft
3 
(56.64 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
V
FRONT 
= 
  
1.50 ft
3
              (42.48 liters)
GT1241
(side view)
diam. = 4"
(2) Ports
fo= 55.0 Hz
length =
9.00"
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 @ 65 Hz
C
Xd mM 
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
  0.0
T mSec
 20
  15
  10
  5
  0
-5
-10
-15
-20
20       Frequency       50                      100 Hz                200                              500                      1k                      2 k    
Transducer Excursion
Group Delay
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Here you can read online and download JBL GT 1241 (serv.man2) Service Tips in PDF. GT 1241 (serv.man2) service tips will guide through the process and help you recover, restore, fix, disassemble and repair JBL GT 1241 (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.

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