JBL GT 800 (serv.man2) Service Tips ▷ View online
SPECIFICATIONS
D
IAMETER
:
8" (203.2
MM
)
S
ENSITIVITY
(2.83 V @ 1
M
):
93 dB
P
OWER
H
ANDLING
:
200 W
RMS
F
REQUENCY
R
ESPONSE
:
35 ~ 5,000 H
Z
N
OMINAL
I
MPEDANCE
:
4
OHMS
V
OICE
-C
OIL
D
IAMETER
:
1.5" (38.1
MM
)
D
IMENSIONS
:
THIELE-SMALL PARAMETERS
V
OICE
C
OIL
D
C
R
ESISTANCE
:
R
EVC
(
OHMS
) . . . . . . 3.03
V
OICE
C
OIL
I
NDUCTANCE
@ 1
K
H
Z
: L
EVC
(
M
H). . . . . . . . 1.62
D
RIVER
R
ADIATING
A
REA
:
S
D
(
IN
2
) . . . . . . . . 33.02
S
D
(
CM
2
). . . . . . . 214.00
M
OTOR
F
ORCE
F
ACTOR
:
B
L
(T
M
) . . . . . . . . . 9.06
C
OMPLIANCE
V
OLUME
:
V
AS
(
FT
3
). . . . . . . . . 1.04
V
AS
(
LITERS
). . . . . . 24.60
S
USPENSION
C
OMPLIANCE
:
C
MS
(µ
M
/N) . . . . 378.28
M
OVING
M
ASS
, A
IR
L
OAD
:
M
MS
(
GRAMS
) . . . . . 46.86
M
OVING
M
ASS
, D
IAPHRAGM
:
M
MD
(
GRAMS
). . . . . 45.06
F
REE
-A
IR
R
ESONANCE
:
F
S
(H
Z
) . . . . . . . . 37.80
M
ECHANICAL
Q:
Q
MS
. . . . . . . . . . . 12.42
E
LECTRICAL
Q:
Q
ES
. . . . . . . . . . . . 0.41
T
OTAL
Q:
Q
TS
. . . . . . . . . . . . 0.40
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
) . . . . . . . . . 0.61
H
VC
(
MM
) . . . . . . . 15.47
M
AXIMUM
E
XCURSION
:
X
MAX
(
IN
) . . . . . . . . 0.15
X
MAX
(
MM
). . . . . . . . 3.77
IMPEDANCE CURVE
INFINITE BAFFLE
FREQUENCY RESPONSE @ 2.83 V
FREQUENCY RESPONSE @ 2.83 V
INFINITE BAFFLE
EXCURSION/GROUP DELAY @ 75 W
EXCURSION/GROUP DELAY @ 75 W
GT800 8" Woofer – Technical Data
7•8 . . . . . . 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
95
90
85
80
75
70
65
60
55
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
12 dB LP @ 80 Hz
C
Xd mM
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
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
3.82" (97.00 mm)
cutout diameter
7.13" (181.00 mm)
outer diameter
8.32" (211.14 mm)
V
BOX
=
0.36 ft
3
( 10.20 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
GT800
(side view)
C
dB
95
90
85
80
75
70
65
60
55
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 70 Hz
12 dB LP @ 70 Hz
C
Xd mM
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
T mSec
10
7.5
5.0
2.5
0.0
-2.5
-5.0
-7.5
-10
20 Frequency 50 100 Hz 200 500 1k 2 k
Transducer Excursion
Group Delay
GT800
(side view)
Port
fo = 37 Hz
diameter = 2.5"
length = 11.02"
V
BOX
=
0.61 ft
3
(17.28 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
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 @ 90 Hz
12 dB LP @ 90 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
SEALED
BOX VOLUME
BOX VOLUME
SEALED
FREQUENCY RESPONSE @ 2.83 V
FREQUENCY RESPONSE @ 2.83 V
SEALED
EXCURSION/GROUP DELAY @ 100 W
EXCURSION/GROUP DELAY @ 100 W
VENTED
BOX VOLUME
BOX VOLUME
VENTED
FREQUENCY RESPONSE @ 2.83 V
FREQUENCY RESPONSE @ 2.83 V
VENTED
EXCURSION/GROUP DELAY @ 100 W
EXCURSION/GROUP DELAY @ 100 W
GT800 8" Woofer – Technical Data
JBL Technical Data . . . . . . 7•9
SEALED BANDPASS
BOX VOLUME
BOX VOLUME
SEALED BANDPASS
FREQUENCY RESPONSE @ 2.83 V
FREQUENCY RESPONSE @ 2.83 V
SEALED BANDPASS
EXCURSION/GROUP DELAY @ 100 W
EXCURSION/GROUP DELAY @ 100 W
NOTES
GT800 8" Woofer – Technical Data
7•10 . . . . . JBL Technical Data
V
REAR
=
0.45 ft
3
( 12.74 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
V
FRONT
=
0.20 ft
3
(5.66 liters)
GT800
(side view)
diam. = 3"
Port
fo= 80 Hz
length =
9.85"
C
dB
95
90
85
80
75
70
65
60
55
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 80 Hz
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
100
75
50
25
0
-25
-50
-75
-100
20 Frequency 50 100 Hz 200 500 1k 2 k
Transducer Excursion
Group Delay
Display
