SPECIFICATIONS
D
IAMETER
:
12" (0.47
MM
)
S
ENSITIVITY
(2.83 V @ 1
M
):
93 dB
P
OWER
H
ANDLING
:
600 W
RMS
F
REQUENCY
R
ESPONSE
:
20 ~ 300 H
Z
N
OMINAL
I
MPEDANCE
:
4
OHMS
V
OICE
-C
OIL
D
IAMETER
:
4.0" (102.0
MM
)
D
IMENSIONS
:
THIELE-SMALL PARAMETERS
V
OICE
C
OIL
D
C
R
ESISTANCE
:
R
EVC
(
OHMS
) . . . . . . 2.50
V
OICE
C
OIL
I
NDUCTANCE
@ 1
K
H
Z
: L
EVC
(
M
H). . . . . . . . 0.98
D
RIVER
R
ADIATING
A
REA
:
S
D
(
IN
2
) . . . . . . . . 84.57
S
D
(
CM
2
). . . . . . . 548.00
M
OTOR
F
ORCE
F
ACTOR
:
B
L
(T
M
) . . . . . . . . 12.48
C
OMPLIANCE
V
OLUME
:
V
AS
(
FT
3
). . . . . . . . . 2.40
V
AS
(
LITERS
). . . . . . 56.66
S
USPENSION
C
OMPLIANCE
:
C
MS
(µ
M
/N) . . . . 132.87
M
OVING
M
ASS
, A
IR
L
OAD
:
M
MS
(
GRAMS
) . . . . 139.26
M
OVING
M
ASS
, D
IAPHRAGM
:
M
MD
(
GRAMS
). . . . 131.88
F
REE
-A
IR
R
ESONANCE
:
F
S
(H
Z
) . . . . . . . . 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
-G
AP
H
EIGHT
:
H
AG
(
IN
) . . . . . . . . . 0.32
H
AG
(
MM
) . . . . . . . . 8.12
V
OICE
-C
OIL
H
EIGHT
:
H
VC
(
IN
) . . . . . . . . . 0.75
H
VC
(
MM
) . . . . . . . 19.05
M
AXIMUM
E
XCURSION
:
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
